HYDRAULIC FLUIDS

Item
Price
Quantity
  • Item
  • Price
  • Quantity
  • ROYCO 756 SUPER CLEAN, MIL-PRF-5606
    BAC #: 756

    Royco 756 Hydraulic Fluid, MIL-PRF-5606

    In Stock

    ROYCO

    Royco 756 is a red-dyed, mineral oil-based aviation hydraulic fluid formulated for severe-duty aerospace and industrial applications. Manufactured by LANXESS, Royco 756 provides low-temperature...
    $18.89 - $379.23
    $18.89 - $379.23
    Qty in Cart: 0
    Price:
    $18.89 - $379.23
    Subtotal:
  • StrutWipe 6x6-SW-756 StrutWipe Cleaning Aircraft Strut
    BAC #: STRUTWIPE-5606

    Strut Wipe, Pre-Saturated MIL-PRF-5606

    In Stock

    StrutWipes are a quick and easy way to remove dirt and grime from aircraft struts.  Each package contains one 100% recyclable/biodegradable cotton wipe saturated with MIL-PRF-5606 Hydraulic Fluid. ...
    $4.45 - $5.00
    $4.45 - $5.00
    Qty in Cart: 0
    Price:
    $4.45 - $5.00
    Subtotal:
  • ROYCO 782 HYDRAULIC FLUID, MIL-PRF-83282
    BAC #: 782

    Royco 782 Hydraulic Fluid, MIL-PRF-83282

    In Stock

    ROYCO

    Royco 782 is a red-colored, synthetic hydrocarbon-base hydraulic fluid formulated for severe-duty hydraulic systems requiring fire resistance, wide operating-temperature capability, oxidation...
    $24.71 - $398.36
    $24.71 - $398.36
    Qty in Cart: 0
    Price:
    $24.71 - $398.36
    Subtotal:
  • SKYDROL LD-4 HYDRAULIC FLUID GALLON AND QUART
    BAC #: LD4

    Skydrol LD-4 Hydraulic Fluid

    In Stock

    SKYDROL

    Skydrol LD-4 is a low-density, fire-resistant Type IV phosphate ester hydraulic fluid manufactured by Eastman for aircraft hydraulic systems. It is formulated to provide excellent thermal stability,...
    $62.84 - $959.84
    $62.84 - $959.84
    Qty in Cart: 0
    Price:
    $62.84 - $959.84
    Subtotal:
  • Skydrol 500B4 Hydraulic Fluid
    BAC #: 500B4

    Skydrol 500B-4 Hydraulic Fluid

    In Stock

    SKYDROL

    Skydrol 500B-4 is a standard-density, fire-resistant phosphate ester hydraulic fluid manufactured by Eastman for aircraft hydraulic systems. A Type IV aviation hydraulic fluid, Skydrol 500B-4 has a...
    $59.97 - $1,033.89
    $59.97 - $1,033.89
    Qty in Cart: 0
    Price:
    $59.97 - $1,033.89
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  • Brayco 881 Hydraulic Fluid five gallon pail, MIL-PRF-87257
    BAC #: 881

    Brayco 881 Hydraulic Fluid, MIL-PRF-87257

    In Stock

    CASTROL

    Castrol Brayco Micronic 881 is a fire-resistant, synthetic hydrocarbon-based hydraulic fluid formulated for low-temperature aircraft and missile hydraulic applications. Brayco Micronic 881 is a...
    $25.44 - $417.82
    $25.44 - $417.82
    Qty in Cart: 0
    Price:
    $25.44 - $417.82
    Subtotal:
  • Aeroshell 41 hydraulic fluid quart
    BAC #: ASF41-QT

    Aeroshell 41 Fluid, MIL-PRF-5606J

    In Stock

    AEROSHELL

    AeroShell Fluid 41 is a superclean, mineral-based aircraft hydraulic fluid formulated for modern aviation hydraulic systems requiring a MIL-PRF-5606 type hydraulic fluid. It provides excellent...
    $17.11

    $17.11

    /EA
    $17.11

    $17.11

    /EA
    Qty in Cart: 0
    Price:
    $17.11

    $17.11

    /EA
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  • SkyMark SM-V Pre-Saturated Skydrol Wipe
    BAC #: SKYMARK-WIPE

    Skymark Skydrol/Hyjet Pre-Saturated Wipe, 9x9

    In Stock

    SkyMark is the only patent-pending Skydrol and HyJet (Type IV and V) compatible cleaning and lubricating wipe endorsed by the Boeing company.  SkyMark is suitable for seals made with butyl rubber or...
    $7.81

    $7.81

    /EA
    $7.81

    $7.81

    /EA
    Qty in Cart: 0
    Price:
    $7.81

    $7.81

    /EA
    Subtotal:
  • Mobil Hyjet IV five gallon and one gallon hydraulic fluid cans
    BAC #: HYJET4

    Hyjet IV-A Plus Hydraulic Fluid

    In Stock

    EXXONMOBIL HYJET

    ExxonMobil HyJet IV-A Plus is a fire-resistant phosphate ester hydraulic fluid formulated for commercial aircraft hydraulic systems requiring a Type IV aviation hydraulic fluid. HyJet IV-A Plus...
    $42.43 - $802.43
    $42.43 - $802.43
    Qty in Cart: 0
    Price:
    $42.43 - $802.43
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  • Skydrol 5 Aircraft Hydraulic Fluid pail
    BAC #: SKYDROL5-5GL

    Skydrol 5 Hydraulic Fluid

    In Stock

    SKYDROL

    Skydrol 5 is a low-density, fire-resistant Type V phosphate ester hydraulic fluid manufactured by Eastman for aircraft hydraulic applications. Developed for higher-temperature operation than Type IV...
    $997.25

    $997.25

    /EA
    $997.25

    $997.25

    /EA
    Qty in Cart: 0
    Price:
    $997.25

    $997.25

    /EA
    Subtotal:
  • HyJet V aircraft hydraulic fluid gallon can
    BAC #: HYJET-V-GL

    HyJet V Hydraulic Fluid Gallon

    In Stock

    EXXONMOBIL HYJET

    HyJet V Aviation Hydraulic Fluid *Special Offer* HyJet V is part of the HyJet family of phosphate ester aviation hydraulic fluids developed for modern aircraft hydraulic systems. It is intended for...
    $99.00

    $99.00

    /EA
    $99.00

    $99.00

    /EA
    Qty in Cart: 0
    Price:
    $99.00

    $99.00

    /EA
    Subtotal:
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Shop Aircraft Hydraulic Fluids from Skydrol, Royco, HyJet and More

Business Aircraft Consumables supplies aircraft hydraulic fluids for aviation maintenance, repair, overhaul, and service applications. Our selection includes commonly used mineral-based, fire-resistant, and phosphate ester aviation hydraulic fluids from manufacturers including Skydrol, Royco, and ExxonMobil HyJet.

Available products include Royco 756 meeting MIL-PRF-5606 requirements, Royco 782 for applications requiring MIL-PRF-83282, and HyJet aviation hydraulic fluids including HyJet IV-A and HyJet V.

Aviation hydraulic fluid is a vital component in aircraft hydraulic systems that operate essential functions such as landing gear, brakes, flight controls, and other hydraulically actuated components. These specialized fluids are formulated to provide the lubrication, thermal stability, corrosion protection, and performance characteristics required by aircraft hydraulic systems operating under demanding conditions.

Because hydraulic-fluid requirements vary between aircraft and components, the correct fluid should always be selected according to the applicable aircraft or component manufacturer's maintenance documentation and approved fluid specification.

Aircraft Hydraulic Fluid Types

Aircraft hydraulic fluids are formulated for specific operating requirements and material compatibility. BAC supplies several commonly used aviation hydraulic fluid types, including petroleum-based fluids and phosphate ester fluids used in aircraft hydraulic systems.

Hydraulic Fluid Type Common Specification Examples Typical Application
Mineral-Based Hydraulic Fluid MIL-PRF-5606 Royco 756 Aircraft hydraulic systems requiring a petroleum-based aviation hydraulic fluid
Fire-Resistant Hydraulic Fluid MIL-PRF-83282 Royco 782 Aircraft hydraulic systems requiring a high-temperature, fire-resistant hydraulic fluid
Phosphate Ester Hydraulic Fluid Aircraft and component-specific specifications Skydrol, Brayco 881, HyJet Aircraft hydraulic systems designed for phosphate ester hydraulic fluids
HyJet Aviation Hydraulic Fluid Product- and aircraft-specific requirements HyJet IV-A and HyJet V Aircraft hydraulic systems and components requiring the applicable HyJet fluid

HyJet IV-A and HyJet V Hydraulic Fluids

BAC carries HyJet IV-A and HyJet V aviation hydraulic fluids from ExxonMobil for aircraft hydraulic applications. Both are phosphate ester hydraulic fluids intended for aircraft systems where the applicable aircraft or component documentation calls for the respective fluid or an approved equivalent.

The HyJet product family provides aircraft operators and maintenance organizations with hydraulic-fluid options for systems requiring the applicable HyJet formulation. Product selection should be based on the aircraft manufacturer's approved fluid requirements rather than simply substituting one HyJet product for another.

View all HyJet Aviation Hydraulic Fluids

Selecting the Correct Aircraft Hydraulic Fluid

Hydraulic fluids are not universally interchangeable. Different aircraft hydraulic systems may require specific fluid formulations based on system design, operating temperature, pressure, seals, hoses, coatings, and other materials used in the system.

Before selecting an aircraft hydraulic fluid, verify:

  • The hydraulic-fluid specification listed in the applicable aircraft or component documentation
  • The manufacturer's approved or qualified fluid list
  • Compatibility with system seals, hoses, coatings, and other materials
  • Applicable storage and shelf-life requirements
  • Whether the specified replacement fluid may be mixed with the fluid currently in the system

Important: Always verify the aircraft, component, or equipment manufacturer's approved hydraulic fluid specification before selecting, replacing, or mixing hydraulic fluid. If the required specification is uncertain, refer to the applicable maintenance manual or manufacturer's technical documentation.