Aircraft Hydraulic Component Manufacturers

Last updated: January 2026

This directory lists 76 aircraft hydraulic component manufacturers across the United States, from precision machinists specializing in complex hydraulic manifolds to full-service integrators of complete fluid power systems.

Buyers in this specialized field are solving critical problems related to aircraft performance, safety, and longevity. This often involves sourcing components that can reliably operate under extreme temperature differentials, maintain precise pressure ratings across varying altitudes, and ensure fatigue life longevity in high-cycle actuation systems for flight controls or landing gear. The consequences of failure necessitate an unwavering focus on material integrity and process control.

Suppliers in this space generally fall into several distinct categories. Some are highly specialized precision machine shops focusing on complex hydraulic blocks, valve bodies, and pistons, often subcontracting special processes. Others are assembly houses that integrate these machined parts with seals, springs, and electronic controls to build complete pumps, motors, or actuators. You'll also find manufacturers specializing in fluid conveyance systems, accumulators, and hydraulic filtration units, each with their own unique expertise and certification requirements.

To engage effectively, buyers must arrive with detailed engineering drawings, often including 3D models and precise material specifications with required test reports. Suppliers expect full transparency regarding expected operational environment, required pressure ratings, fluid compatibility (e.g., Skydrol vs. MIL-PRF-87257), and projected annual volumes. Be prepared to discuss your quality system requirements, including AS9100 revision, and any specific NADCAP accreditations needed for special processes.

A significant trend in aircraft hydraulic component manufacturing is the increasing demand for electrification and power-by-wire (PBW) systems, pushing for lighter, more efficient components. This shift often involves integrating miniature hydraulic power packs with advanced electronics, leading to a need for suppliers with expertise in both traditional hydraulic engineering and sophisticated electro-mechanical integration, alongside maintaining legacy support for existing fleets.

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Company Directory

76 companies nationwide

Allan Aircraft Manufacturing

allanaircraft.com
North Hollywood, CA

Based in North Hollywood, CA, Allan Aircraft Manufacturing produces precision aerospace-grade hydraulic fittings. Certified to AS9100, ISO 9001, and NADCAP standards, they engineer high-quality components for demanding aerospace and spaceflight environments. They offer advanced grooved ring-seal designs and precision-machined fittings in stainless steel and specialty alloys.

sales@allanaircraft.com+18187654992

Alloy Precision Technologies

alloyprecisiontech.com
Mentor, OH

Based in Mentor, OH, Alloy Precision Technologies manufactures precision aerospace components, specializing in metal bellows, thin wall tubing, and welded assemblies. They utilize advanced manufacturing and AI-driven inspection to deliver reliable solutions for demanding aerospace and defense applications, including critical fluid and motion control systems.

sales@alloyprecisiontech.com+14402667700

A&P Hydraulics

ap-hydraulics.com
—

A&P Hydraulics, established in 1992, is a renowned manufacturer of high-performance hydraulic solutions. The company primarily serves the aerospace, military, and aviation industries, providing specialized hydraulic components and systems designed for critical applications and demanding operational environments.

sales@ap-hydraulics.com+17042895413

Arkwin Industries, Inc.

arkwin.com
Bethpage, NY

Based in Bethpage, NY, Arkwin Industries designs, tests, manufactures, and supports precision hydraulic and fuel system components for aerospace and defense. They serve civil and military fixed-wing aircraft, helicopters, spacecraft, and turbine engines, offering FAA and EASA certified repair and overhaul services.

sales@arkwin.com+15163332640

B&E Manufacturing

bandemfg.com
Garden Grove, CA

Based in Garden Grove, CA, B&E Manufacturing specializes in producing precision quality AN, AS, MS, and NAS hydraulic tube fittings. They also manufacture specialty fittings and machined parts for aerospace, commercial, and military applications, holding ISO 9001:2015, AS9100D, and NADCAP certifications.

sales@bandemfg.com+17148982269

Cascon Pumps

casconpump.com
—

Cascon Pumps designs, develops, and manufactures custom pump solutions and hydraulic motors. With over thirty years of experience, the company specializes in serving the aerospace market, providing products for general aviation and manned space flight applications.

sales@casconpump.com+12078466202

C&H Hydraulics Inc

chhyd.com
Newport Beach, CA

C&H Hydraulics Inc. based in Newport Beach, CA, specializes in the manufacturing and assembly of aerospace and mechanical components. Since 1978, the company has provided services like bearing installation, swaging, bushing installation, proof-load testing, and structural aerospace assembly for the aerospace industry.

jim@chhyd.com+19496466230

California Precision Hydraulics, Inc.

cphyd.com
Los Angeles, CA

California Precision Hydraulics, Inc. (CPHI) is an FAA and EASA authorized repair station that manufactures and repairs precision parts for Constant Speed Drives, Integrated Drive Generators, and hydraulic pump/motors. CPHI leverages 70 years of aerospace industry experience and advanced machining to produce critical aircraft hydraulic components.

cphiinfo@cphyd.com+18185978141

Crane Aerospace & Electronics

craneae.com
—

Crane Aerospace & Electronics manufactures highly engineered aerospace and defense solutions. The company provides custom-engineered brake control systems, reliable hydraulic components, and landing gear proximity indication systems. They supply critical systems for commercial and military aircraft, including COMAC's C929, Deutsche Aircraft's D328eco, and F-16 redesigns.

info@craneae.com+14257431313

Custom Aerospace

custom-aerospace.com
—

Custom Aerospace manufactures AS9100-certified flight and mission-critical components for extreme environments. Capabilities encompass multi-axis machining, composites, fabrications, finishing, and assemblies. They also utilize advanced additive manufacturing for high-performance super polymers, producing complex precision-engineered parts for demanding aerospace applications.

info@custom-aerospace.com+13217240127

DK Turbines

dkturbines.com
Hollister, CA

DK Turbines specializes in manufacturing components for the aviation sector, offering models for various hydraulic pressure ranges and electric options compatible with standard aircraft. The company maintains an extensive aircraft parts database, serving the needs of the aerospace industry. Based in Hollister, CA, DK Turbines provides essential aircraft parts.

info@dkturbines.com+18316368824

Dow Hydraulic Systems

dowhydraulics.com
Pomona, CA

Based in Pomona, CA, Dow Hydraulic Systems manufactures hydraulic controls for land, sea, and air, specializing in the aerospace industry. They offer match-fit hydraulic servo valves and actuator assemblies, made to order, and provide comprehensive hydraulic testing services. The company is proudly made in the USA.

mcontreras@dowhydraulics.com+19095966602

Elbit America

elbitamerica.com
Fort Worth, TX

Based in Fort Worth, TX, Elbit America specializes in developing and advancing high-performance hydraulic systems for military and airborne applications. The company leverages deep expertise to ensure reliability and optimal function of critical aircraft hydraulic components.

media@elbitamerica.com+18172346600

Federal Industries, Inc.

fedindustries.com
El Segundo, CA

Federal Industries, Inc. an aerospace and defense manufacturer based in El Segundo, CA, specializes in fuel, hydraulic, electro-mechanical, and pneumatic flow control devices. They also produce Aerial Refueling Digital Hydraulic Actuation systems and components, such as Hose Reel Hydraulic Motor Assemblies, for aircraft applications like the Boeing KC-46 Pegasus.

contact@fedindustries.com+13102974040

FluidTran

fluidtran.com
Fort Worth, TX

FluidTran, based in Fort Worth, TX, is a supplier of superior quality fluid handling equipment and systems. The company specializes in aviation fluid handling components and systems, serving the United States military. They provide critical fluid management solutions tailored for aerospace applications and defense operations.

tomfitzgerald@fluidtran.com+16127084317

Global Precision Products, LLC

globalppi.com
Rush, NY

Based in Rush, NY, Global Precision Products, LLC is an AS9100D certified contract manufacturer specializing in tight tolerance precision machined products. They provide turnkey manufacturing services for commercial and military aviation, producing components like solenoid valves, LVDTs, accelerometers, and sensors for their customers' products.

abuchanan@globalppi.com+15853344640

G.W. Lisk Company, Inc.

gwlisk.com
Clifton Springs, NY

G.W. Lisk Company, Inc. designs and manufactures precision valves, solenoids, and sensors for critical applications. Specializing in aerospace, defense, on-highway, off-highway, and oil & gas industries, the company engineers robust and reliable solutions. Lisk collaborates with partners to develop forward-thinking, vertically integrated components.

sales@gwlisk.com+13154622611

Hydraulics International, Inc.

hiinet.com
—

Hydraulics International, Inc. specializes in advanced hydraulic systems and test equipment primarily for military aircraft applications. The company provides comprehensive solutions spanning hydraulics, lubrication, pneumatic, fuel, and electrical/electronic systems. They also offer calibration services and maintenance tooling to support critical aerospace component functionality.

info@hiinet.com+18189981231

Hummingbird Aero

hummingbird-aero.com
Irvine, CA

Based in Irvine, CA, Hummingbird Aero specializes in the design, development, and manufacture of safety-critical systems and components for commercial and military aircraft. They provide solutions for flight control actuation, vehicle management systems, and component design, manufacturing, and integration for aerospace applications.

admin@hummingbird-aero.com+18056304496

Hydraulic Manifolds USA

hydraulicmanifoldsusa.com
West Milford, NJ

Based in West Milford, NJ, Hydraulic Manifolds USA designs and manufactures standard and custom hydraulic manifolds. With almost 50 years of experience, they utilize CNC machining and advanced design software. Serving aerospace, agriculture, oil & gas, and defense industries, they provide tailored hydraulic circuit solutions and valve applications efficiently.

sales@hmanifolds.com+18006762417

Innovative Hydraulics, LLC

innovativehyd.com
Wausau, WI

Based in Wausau, WI, Innovative Hydraulics, LLC specializes in the design and manufacture of custom hydraulic cylinders. They produce aerospace custom cylinders, including large bore and telescopic hydraulic cylinders, with bores ranging from 10 to 40 inches. The company provides engineered hydraulic solutions for industrial applications.

sales@innovativehyd.com+17158032600

ITT Aerospace Controls

ittaerospace.com
Valencia, CA

Based in Valencia, CA, ITT Aerospace Controls designs and manufactures essential components for commercial aircraft, business jets, and helicopters. Their product line includes valves, switches, and actuators, critical elements for various aerospace systems. They also offer solutions for noise control, de-icing, and interior heating applications.

sales.aerospace@itt.com+16612954000

JASC

jasc-controls.com
Tempe, AZ

Based in Tempe, AZ, JASC custom engineers and designs actuators and fluid control components for the space, aerospace, and power generation industries. The company manufactures hydraulic servo-actuators, including patented electro-hydraulic servo valves known for high contamination tolerance and long life in demanding environments.

sales@jasc-controls.com+16024384400

Kawak Aviation

kawakaviation.com
Bend, OR

Based in Bend, OR, Kawak Aviation specializes in the design and manufacturing of aircraft hydraulic power systems and mission equipment. They provide solutions including actuators, control sequence, selector valves, and power assemblies for aerial firefighting, agriculture, and freighter conversions.

kevin@kawakaviation.com+15413855051

Matco Aircraft Landing Systems

matcoals.com
West Woods Cross, UT

Matco Aircraft Landing Systems manufactures wheels, brakes, and related components specifically for the sport aircraft market. With over 70 years of experience, the company focuses on providing landing gear solutions for experimental and light sport aircraft.

tech@matcoals.com+18013350582

McDowell & Company

mcd-co.com
Richardson, TX

Based in Richardson, TX, McDowell & Company specializes in manufacturing and distributing high-precision components for various industries, including aerospace. They focus on aircraft hydraulic seals, O-rings, and gaskets, utilizing CNC precision machining. The company provides quality parts to customer specifications efficiently and economically.

sales@mcd-co.com+18004864748

CJ Aviation

mcfarlaneaviation.com
—

CJ Aviation manufactures FAA-PMA approved fuel and hydraulic pumps, serving the aircraft industry for over 30 years. The company specializes in producing airframe parts, maintaining a large inventory for popular models including Cessna, Piper, Beechcraft, and various homebuilt aircraft types.

sales@mcfarlaneaviation.com+18669202741

MP Aero, LLC

mpaero.com
Valencia, CA

Based in Valencia, CA, MP Aero, LLC specializes in aerospace product manufacturing and VIP aircraft interiors. They provide multifaceted electromechanical and hydraulic-mechanical assemblies and sub-assemblies, alongside single component fabrication. Capabilities also include precision metal fabrication, exotic alloy forming, and aircraft repair services.

info@mpaero.com+18189019828

MTCcorp

mtccorp.com
Fountain Valley, CA

MTCcorp specializes in aerospace fabrication, providing precision CNC machining, advanced composites, and complex assemblies for defense and commercial aviation. Utilizing a hydraulic stamping press, they manufacture critical, high-tolerance components for aircraft like the Sikorsky S-92 and Lockheed Martin F-22, supporting various aerospace programs.

info@mtccorp.com+17144442000

PacSeal Hydraulics

pacsealhydraulics.com
Brea, CA

Based in Brea, CA, PacSeal Hydraulics engineers and manufactures high-performance, zero-leak fluid power control components. Specializing in ShearFlo® metal-to-metal sealing technology, they produce directional control valves, pressure regulators, and hydraulic manifolds for critical service applications. Serving industries like Aerospace and Oil and Gas, all components are manufactured in the USA.

sales@pacsealhydraulics.com+17145299495

Precision Aero Components, Inc.

precisionaero.com
Avon, CT

Precision Aero Components, Inc. manufactures mission-critical, close tolerance machined components for commercial and military aircraft. Specializing in CNC milling, turning, grinding, and assembly, the company provides essential parts for aerospace and defense sectors, including hydraulic applications.

rfq@precisionaero.com+19378752991

Precision Fluid Controls, Inc.

precisionfluidcontrols.com
Lincoln, CA

Based in Lincoln, CA, Precision Fluid Controls, Inc. designs, manufactures, and tests a variety of high-performance fluid control components, including check valves, relief valves, ball valves, and regulators. They serve launch vehicle and ground support applications, providing critical components for high-pressure hydraulic and pneumatic systems.

pstevens@precisionfluidcontrols.com+19166263029

PULSCO, Inc.

pulsco.com
Santa Ana, CA

Based in Santa Ana, CA, PULSCO, Inc. designs and supplies engineered solutions for fluid pulsation, noise, and surge control. The company specializes in aerospace dampeners, extending the life and durability of aircraft hydraulic systems. PULSCO protects assets from premature degradation.

sales@pulsco.com+19492611717

RBC Bearings

rbcbearings.com
Oxford, CT

Based in Oxford, CT, RBC Bearings is a manufacturer and supplier of highly engineered, specialty hydraulic actuation products. The company serves critical aerospace, defense, and space markets, providing essential components for complex systems. They focus on precision and performance for demanding applications.

info@rbcbearings.com+12032677001

Sargent Aerospace & Defense

sargentaerospace.com
Tucson, AZ

Based in Tucson, AZ, Sargent Aerospace & Defense specializes in designing, qualifying, and manufacturing aerospace-grade linear hydraulic actuators and assemblies. The company provides comprehensive aerospace hydraulics and bearings, leveraging expertise in design engineering to support demanding applications for aerospace and defense clients.

support@modxcloud.com+15207441000

SECO SEALS, Inc.

secoseals.com
Costa Mesa, CA

Based in Costa Mesa, CA, SECO SEALS, Inc. is an AS9100D certified aerospace manufacturer. Specializing in high-pressure tube fitting gaskets and conical seals since 1969, they provide solutions to prevent leaks in critical connections for demanding environments, including aircraft hydraulic systems and rocket engines.

sales@secoseals.com+17145463478

Solair Group

solairgroup.com
Miami, FL

Based in Miami, FL, Solair Group manufactures hydraulic power units (HPUs) and fluid dispensers for aircraft maintenance tooling and ground support equipment. The company also produces aircraft jacks and offers services including leasing, calibration, load testing, and repairs for GSE.

sales@solairgroup.com+18669869302

Spectrum Controls Inc.

spectrumct.com
Milford, CT

Based in Milford, CT, Spectrum Controls Inc. specializes in the design and manufacture of custom engineered valves, manifolds, and integrated fluid control solutions. They serve mission-critical applications for aerospace, defense, and space industries, delivering high-performance hydraulic components built to precise specifications.

info@spectrumct.com+18007232626

Swift Filters

swiftfilters.com
Bedford, OH

Based in Bedford, OH, Swift Filters designs and manufactures custom and customized filter elements. The company specializes in hydraulic filter element manufacturing, providing high-quality OEM replacement filter elements and custom hydraulic filter elements and housings. They serve various industries requiring precision filtration solutions.

info@swiftfilters.com+18778879438

Tactair

tactair.com
Liverpool, NY

Based in Liverpool, NY, Tactair is an AS9100 Rev. D / ISO 9001:2015 certified designer and manufacturer. The company specializes in hydraulic and pneumatic controls for the aerospace industry, providing high-quality components and systems designed for critical aircraft applications and performance.

sales@tactair.com+13154573110

The Lee Company

theleeco.com
Westbrook, CT

Based in Westbrook, CT, The Lee Company manufactures miniature precision fluid control components. The company provides solutions for aerospace and defense applications, enhancing performance, quality, and reliability. They solve customer's toughest fluid control problems in mission-critical industries.

careers@theleeco.com+18603996281

TR Engineering Incorporated

trengineering.com
Scotts Valley, CA

Based in Scotts Valley, CA, TR Engineering Incorporated designs and manufactures advanced hydraulic components and custom fluid power systems. They produce an extensive range of hydraulic hand pumps, directional control valves, and relief valves. The company serves various sectors, including the aerospace and aviation industries.

info@trengineering.com+18314309920

Valcor Engineering Corporation

valcor.com
Springfield, NJ

Based in Springfield, NJ, Valcor Engineering Corporation designs and manufactures fluid control and motion control components and systems. They provide high-performance solutions for demanding aerospace, military, nuclear, and scientific applications, specializing in products like hydraulic accumulators for aircraft, helicopters, and ground vehicles. Established in 1951.

customerservice@valcor.com+19734678400

Weldon Pump, LLC

weldonpumps.com
Oakwood Village, OH

Weldon Pump, LLC designs, engineers, and manufactures fuel, hydraulic, metering, and thermal management pumps. The company provides customized solutions for aviation, military, ground support vehicles, and UAVs, with aerospace certified manufacturing processes. Their product line includes primary fuel, boost, injection, and hydraulic pumps.

info@weldonpumps.com+14402322282

Westfield Hydraulics, Inc.

westfieldhydraulics.com
San Fernando, CA

Based in San Fernando, CA, Westfield Hydraulics, Inc. designs and manufactures powered and non-powered hydraulic fluid control components for aerospace and defense applications. They provide solenoid valves, hydraulic actuators, thrust reverser valves, and accumulators for companies like Boeing and Lockheed, holding AS9100D and FAA Repair Station certifications.

info@westfieldhydraulics.com+18188966414

Woodward Inc.

woodward.com
Fort Collins, CO

Based in Fort Collins, CO, Woodward Inc. designs, develops, and manufactures innovative energy control solutions for aerospace and industrial applications. They are recognized experts in producing hydraulic primary, secondary, and utility flight control actuators for various aircraft systems, ensuring reliable performance and control.

wlo.purchasing@woodward.com+18005435811

Zemarc

zemarc.com
Commerce, CA

Based in Commerce, CA, Zemarc specializes in custom aerospace hydraulic solutions. They provide a range of critical components, including advanced hydraulic power units and actuators, tailored to meet specific aviation industry requirements. Their expertise ensures reliable and high-performance hydraulic systems.

sales@zemarc.com+13237215598

Tribus Aerospace

tribusaerospace.com
—

Tribus Aerospace is a U.S. manufacturer providing precision machining for complex, build-to-print components and assemblies, primarily for Aerospace and Defense markets. They specialize in mission-critical parts for "Power, Propel, Control" applications, including motion and flow control systems. The company operates under AS9100D quality standards.

sales@tribusaerospace.com

ACRA Aerospace

acraaerospace.com
Anaheim, CA

ACRA Aerospace, based in Anaheim, CA, manufactures high-quality complex aerospace components for leading propulsion and airframe OEMs. They specialize in precision machined fluid end fittings and complex fluid fittings, crucial for aircraft hydraulic systems. Capabilities include CNC turning, milling, waterjet, and EDM for aerospace materials, with AS9100D certification.

+17147781900

Advanced Fluid Systems

advancedfluidsystems.com
—

Based in York, PA, Advanced Fluid Systems has over 30 years of experience manufacturing custom hydraulics and advanced motion controls. The company serves diverse industries, providing specialized solutions from marine applications to large-scale aerospace control systems, including components for aircraft hydraulic systems.

+17177571068

Aero Fluid Products

aerofluidproducts.com
City Of Industry, CA

Based in City of Industry, CA, Aero Fluid Products designs and manufactures specialized fuel, hydraulic, and pneumatic valves and fluid regulator systems. They manage the complete production cycle from raw material to finished component for critical applications.

+14403526182

Cal-Draulics

caldraulics.com
—

Cal-Draulics designs and manufactures engineered hydraulic and pneumatic products for the aviation industry. With over 75 years of experience, the company utilizes deep machining capabilities to produce specialized components. They serve aerospace clients requiring precision hydraulic and pneumatic solutions.

+19513401067

CRD MFG, Inc.

crdmfg.com
Placentia, CA

Based in Placentia, CA, CRD MFG, Inc. specializes in manufacturing high-performance aerospace components, including hydraulic lines, duct assemblies, and engine components. Their capabilities encompass laser tube cutting, CNC tube bending, CNC machining, robotic welding, and tube fabrication, supporting both prototyping and mass production.

+17148713300

Crissair, Inc.

crissair.com
Valencia, CA

Crissair, Inc. is a manufacturer of quality aircraft fluid control components, including hydraulic actuators. Based in Valencia, CA, the company designs, develops, and produces superior hydraulic, fuel, and pneumatic system components. Since 1954, Crissair has supplied precision components for military and commercial airframe manufacturers.

+16613673300

Daman Products Inc.

daman.com
Mishawaka, IN

Based in Mishawaka, IN, Daman Products Inc. specializes in custom design and manufacturing services for hydraulic and pneumatic manifolds. They work with materials such as ductile iron, aluminum, stainless steel, and brass, offering integrated manifold solutions, headers, and junctions compatible with Sun Hydraulics components for various industrial applications.

+18009597841

Donaldson Aerospace

donaldson.com
Bloomington, MN

Based in Bloomington, MN, Donaldson Aerospace specializes in manufacturing aircraft hydraulic oil filters and assemblies. The company leverages its expertise and certifications to provide advanced filtration solutions tailored to meet the demanding needs of hydraulic systems within the aerospace industry.

+19528873131

Ejay Filtration Inc.

ejayfiltration.com
Riverside, CA

Ejay Filtration Inc. based in Riverside, CA, manufactures custom stainless steel and wire mesh filtration products. They provide FAA/PMA filters for commercial aerospace, the US Military, and NASA, crucial for aircraft hydraulic systems and rocket fuel. The company is AS9100/ISO9001 certified and Nadcap Accredited.

+19516830805

FCP Filters

fcp-filters.com
—

Based in Lititz, PA, FCP Filters manufactures essential filtration components for demanding aerospace applications. Their product line includes hydraulic filters, oil system filters, and strainers, serving military and commercial aerospace industries. FCP Filters provides critical solutions for aircraft hydraulic systems, ensuring reliable performance.

+17176271550

Global Filtration

globalfiltration.com
Waco, TX

Global Filtration provides precision-engineered aircraft filtration components, specializing in high-quality filters for cabin air, oil, fuel, NGS, and hydraulic systems. They offer custom solutions and PMA certified metal fiber filters designed for cleaner, long-lasting hydraulic performance.

+18009802525

R&B Plastics

hydraulicseals.net
Grand Rapids, MI

Based in Grand Rapids, MI, R&B Plastics is an experienced manufacturer providing quality plastic products, likely hydraulic seals and components, to the U.S. Government and major aerospace companies. With 34 years of expertise, the company serves critical needs for clients such as Boeing Corporation.

+18324485550

Ligon Hydraulics

ligonhyd.com
Tonawanda, NY

Based in Tonawanda, NY, Ligon Hydraulics designs and manufactures precision custom hydraulic cylinders. The company provides various solutions, including welded, multi-stage, bolted-head, and pneumatic accumulator cylinders. Ligon serves diverse markets such as aerospace & defense, automotive, and industrial handling.

+17166948004

Moog Inc.

moog.com
East Aurora, NY

Based in East Aurora, NY, Moog Inc. is a global leader in motion control. The company provides advanced hydraulic and electro-hydrostatic hardware and software solutions, specializing in components and systems for aircraft and other applications across land, sea, and space industries.

+17166522000

Moseys Production Machinists

moseys.com
Anaheim, CA

Based in Anaheim, CA, Moseys Production Machinists provides high-precision CNC machining services to OEMs. They fabricate parts and components for hydraulic systems that power aerospace equipment. Specializing in CNC milling, turning, and Swiss machining, Moseys delivers quality production to aerospace, defense, and industrial sectors since 1975.

+15625565633

NMG Aerospace

nmgaerospace.com
Stow, OH

NMG Aerospace specializes in manufacturing and design services for critical aerospace components. The company provides fabrication, precision machining, welding, assembly, and testing. They are experienced in producing essential parts, including hydraulic actuators, and also offer maintenance, repair, and overhaul services for the aerospace industry.

+13306886494

Norman Filter Company

normanfilters.com
Bridgeview, IL

Based in Bridgeview, IL, Norman Filter Company designs, manufactures, and tests high flow and high pressure aircraft filters for aerospace applications, including manned space flight. They produce all-welded stainless steel mesh filter elements in-house, holding AS9100 & ISO certifications for quality filtration solutions.

+18002076045

Precision Aerospace Corporation

pac.cc
Rancho Cucamonga, CA

Precision Aerospace Corporation, based in Rancho Cucamonga, CA, is an AS9100, ISO9001, and NADCAP-certified manufacturer of precision aerospace components. They offer machining, chemical milling and finishing services, and complete fabrication jobs. The company adheres to strict FAA, DOD, and NASA requirements, ensuring accuracy and safety for the aviation industry.

+19099808855

PneuDraulics, Inc.

pneudraulics.com
Rancho Cucamonga, CA

PneuDraulics manufactures aerospace hydraulic system components, including actuators, manifolds, reservoirs, solenoid and utility valves. Based in Rancho Cucamonga, CA, the company provides precision-engineered components for military, commercial, and commuter aircraft, helicopters, business jets, and spacecraft, adhering to ISO 9001:2015 and AS9100:2016.

+19099805366

Porvair Filtration Group

porvairfiltration.com
Nampa, ID

Based in Nampa, ID, Porvair Filtration Group designs and manufactures aerospace filters. These specialized filters are crucial for hydraulic applications, safeguarding flight controls, braking, steering, and thrust reverse actuation systems in aircraft. The company provides essential components for the aerospace industry.

+18045501600

PTI Technologies Inc.

ptitechnologies.com
Oxnard, CA

Based in Oxnard, CA, PTI Technologies Inc. manufactures hydraulic filters for the aerospace industry. The company supplies critical filtration solutions for airframes worldwide, including to The Boeing Company. PTI Technologies is recognized for its expertise in aircraft hydraulic components and advanced filtration technology.

+18003312701

Senior Aerospace Spencer

spenceraero.com
—

Senior Aerospace Spencer is an engineer-driven organization specializing in high-precision hydraulic fluid fittings for use in commercial and military aerospace applications. The company manufactures source-controlled standard and custom hydraulic components, providing critical parts for the aircraft industry.

+18183508499

Triumph Group

triumphgroup.com
—

Based in Radnor, PA, Triumph Group manufactures mission-critical engineered systems and proprietary components for aerospace and defense companies. The company specializes in aircraft hydraulic power systems and related components, serving both OEM and aftermarket applications with significant unit shipments and orders.

+16102511000

W Machine Works

wmwcnc.com
San Fernando, CA

W Machine Works manufactures aerospace parts, specializing in quality manifolds for demanding aviation and defense systems. Based in San Fernando, CA, the company uses palletized 5-axis mills for efficient production. Certified to AS9100, they support major aircraft programs including the F-35, 737Max, and A320Neo.

+18188908049

York Precision Machining & Hydraulics

yorkpmh.com
—

Based in York, PA, York Precision Machining & Hydraulics manufactures precision fluid power components and systems, including BEAR-LOC® hydraulic rod locking systems. They provide customized manufacturing and high-precision machining services for aerospace, defense, and various industrial applications, ensuring fail-safe performance and load control.

+17177648855

HEICO Corporation

heico.com
Hollywood, FL

Based in Hollywood, FL, HEICO Corporation manufactures critical aircraft components and aerospace systems. The company provides precision machined parts, including hydraulic system components, for major airlines, OEMs, and the U.S. military. HEICO serves diverse applications across the aerospace, defense, and electronics industries.

No contact on file

Safran

safran-group.com
—

Safran Landing Systems, a division of Safran, designs and manufactures advanced hydraulic actuation systems for aircraft. Specializing in wheel steering control systems, they apply extensive hydraulic know-how. They provide critical hydraulic components for landing gear and diverse aerospace applications, serving commercial and military aviation.

No contact on file

Superior Tube

superiortube.com
—

Superior Tube manufactures small-diameter, thin-wall metal tubing for mission-critical applications, including hydraulic tubes for aircraft flight control surfaces. They produce seamless and welded tubes using high-performance stainless steel, nickel, titanium, and zirconium alloys.

No contact on file

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How to Choose a Company

  • Verify the manufacturer holds current AS9100D certification and, critically, specific NADCAP accreditations relevant to your component's special processes, such as heat treating, non-destructive testing (NDT), chemical processing, or fluid distribution systems, as a general AS9100 alone isn't sufficient for aerospace special processes.
  • Assess their experience with the specific hydraulic fluid your system uses; ensuring proven Skydrol compatibility and proper sealing material selection is paramount to prevent degradation and catastrophic system failure over operational life.
  • Demand comprehensive material traceability, including mill certifications and chemical/physical test reports for every batch of raw material used, ensuring compliance with specifications like AMS standards and mitigating the risk of counterfeit parts entering the supply chain. This is a common red flag if not rigorously managed.
  • For new component development, ensure they have a robust First Article Inspection (FAI) process compliant with AS9102, including detailed measurement reports for all critical features and functional testing under simulated operational pressures and temperatures.

Frequently Asked Questions

What is the difference between an FAA Part 21 PMA and an OEM-approved component, and which should I source?

An OEM-approved component is manufactured by the original equipment manufacturer or their direct approved supplier chain, under their production certificate. An FAA Part 21 Production Manufacturer Approval (PMA) holder manufactures replacement parts under their own FAA approval, demonstrating that their part is at least equivalent in terms of design, material, manufacturing processes, and quality control. For critical flight control or structural hydraulics, many operators still prefer OEM parts due to established track records, though PMA parts can offer cost savings and availability, provided the PMA holder has a robust quality system and proven performance in the field. Your choice depends on the specific component, your risk tolerance, and the component's criticality.

How critical is Skydrol compatibility when sourcing new hydraulic components, and how is it verified?

Skydrol compatibility is absolutely critical for aircraft hydraulic components, as this phosphate ester-based fluid is highly aggressive towards incompatible materials, especially seals, hoses, and certain coatings. Using a non-compatible component will lead to rapid material degradation, fluid leaks, and potentially catastrophic system failure. Verification involves careful material selection (e.g., EPDM, butyl, or fluorocarbon elastomers, specific metals), rigorous testing of components for material degradation and leakage when exposed to Skydrol under operational temperatures and pressures, and requiring supplier documentation to confirm all wetted materials meet specific aerospace material specifications for Skydrol service.

What level of documentation and traceability should I expect for aircraft hydraulic components, especially for raw materials?

For aircraft hydraulic components, you should expect exceptionally thorough documentation and full traceability for every single part, extending back to the raw material. This includes Certificates of Conformance (CoCs) for the finished part, detailed inspection reports (including First Article Inspection reports per AS9102), and complete raw material mill certifications. These mill certs must show chemical composition, physical properties, heat lot numbers, and often country of origin, ensuring materials meet AMS (Aerospace Material Specification) or other relevant standards. Any special processes like heat treating, plating, or NDT must also be accompanied by NADCAP certificates and process reports, ensuring a complete audit trail from billet to finished component. Missing or incomplete documentation is a significant red flag.

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