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ROYCO® 27 Aircraft Instrument & Gear Bearing Grease

ROYCO® 27 Aircraft Instrument & Gear Bearing Grease

Royco 27 Aircraft Instrument and Gear Bearing Grease is a multi-purpose formula that provides fantastic corrosion resistance and rust protection along with excellent lubrication. The anti-wear formula has a light tan color for easy recognition. It is ester-based and is composed of a long-lasting lithium stearate thickener that works well in a variety of conditions. The water-resistant grease also shuts out moisture, preventing water damage and preserving sensitive engine components. Royco 27 grease has a shelf-life and operational life of up to 3 years, so you can fly with confidence.

Approvals/References/Specification

  • NATO Specification: G-354
  • US Military Specification: MIL-G-23827
  • US Military Specification: MIL-PRF-23827 Type 1
  • Applications
    ROYCO 27 is intended for use in highly loaded gears and actuators as well as instruments and high-speed bearings over temperatures from -100° to 275°F. In addition, ROYCO 27 may be used in all applications where MIL-G-3278, MIL-G-7118, MIL-G-7421, MIL-G-15793, and MIL-PRF-23827 are specified.
    Specifications
    ROYCO 27 meets all requirements and is qualified against MIL-SPEC:
  • MIL-PRF-23827C
  • Penetration, mm

  • Worked: 287
  • Unworked: 275
  • Stability, 100,000 strokes: 310
  • Evaporation, 100 deg C/22 hrs.,%: 1.0
  • Storage Stability: No Gross Separation
  • Oxidation Stability, 100 hrs, 210 deg. F: 2 PSI
  • Rust Prevention: PASS
  • Dropping Point, deg C: 190
  • Oil Separation

  • 100 deg C, 72 hrs, % wt: 2.3
  • Load Wear Index: 37
  • Low Temp. Torque, Nm, -100 F

  • Starting: 0.38
  • Running: 0.03
  • View DetailsEnable JS
    Part Number
    4055657
    Size
    14 oz Cartridge
    Spec
    MIL-PRF-23827C Amendment 2, Type I
    Price
    $14.02
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    Qty
    Certification
    Same Day Ship
    Material Safety Data Sheet:
    MSDS1
    Country of Origin: USA
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    Part Number
    4055651
    Size
    6.5 lb Can
    Spec
    MIL-PRF-23827C, Amendment 2, Type I
    Price
    $83.68
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    Qty
    Certification
    Same Day Ship
    Material Safety Data Sheet:
    MSDS1
    Country of Origin: USA
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    Part Number
    4055649
    Size
    5 Gallon Plastic Pail
    Spec
    MIL-PRF-23827C Amendment 2, Type I
    Price
    $333.31
    Hover for Qty Pricing
    Qty
    Certification
    Material Safety Data Sheet:
    MSDS1
    Country of Origin: USA
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    Part Number
    27-400LB
    Size
    400 lb Drum
    Spec
    N/A
    Price
    $3,285.32
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    Need Lift Gate with Delivery?:
    Qty
    Certification
    Material Safety Data Sheet:
    MSDS1
    Country of Origin: USA
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