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ROYCO® 717 Power Transmission Fluid - 55 Gallon Drum
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ROYCO® 717 Power Transmission Fluid - 55 Gallon Drum

Part#: 717-55GL
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Country of Origin: USA
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ROYCO 717 is a pale straw - colored hydraulic fluid blended with highly refined mineral base oils and modern additive technology to provide protection against rust, wear, demulsibility, and to afford greatly improved viscosity - temperature characteristics as well as enhanced oxidation – corrosion resistance.

ROYCO 717 is recommended for use in applications requiring a constant source of fluid power to hydraulic components - particularly in naval ordnance equipment. The fluid is suitable for use in hydraulic systems involving mechanical or fibrous type filters or centrifugal purification. It is noncorrosive to bearings and hydraulic systems and does not cause clogging of oil screens or valves. The fluid remains homogeneous over the temperature range of -34oC to 4oC.


  • US Military Specification: MIL-DTL-17111C
    Product Details
    UOM : Each
    Size : 55 Gallon
    Color Family : Yellow
    Shipping Weight : 550 pounds
    Manufacturer P/N : Royco 717
    ECCN : EAR99
    Schedule B Code : 2710.19.3750
    Military Standard : MIL-DTL-17111C
    Disclaimer: While reasonable efforts have been made to ensure all information on this website is accurate, and Styles Logistics, Inc. do not assume responsibility for any errors or omissions. All specifications, illustrations, data and prices are subject to change without notice.
    • High Viscosity Index
    • Rust and Corrosion Inhibition
    • Wide temperature application
    • Good Emulsion Stability
    • Full power operation under moderate water contamination and high humidity environments
    • Non-corrosive to system components; does not form deposits of precipitates which can close fitting components.
    PropertiesTest MethodROYCO 717
    Kinematic Viscosity, cSt @ 100oCASTM D44510.65
    Kinematic Viscosity, cSt @ 40oCASTM D44531.25
    Kinematic Viscosity, cSt @ -20oCASTM D44305
    Kinematic Viscosity, cSt @ -35oCASTM D445878
    Pour Point, oCASTM D97-51
    Flash Point, oCASTM D92113
    Fire Point, oCASTM D92116
    Neutralization No., mq KOH/gASTM D9740.10
    Water Content, %ASTM D950.05
    API Gravity, 15.6oCASTM D28728.7
    ColorASTM D15001.0
    Low Temperature TurbidityspecPass
    Rust PreventionASTM D665APass
    Corrosion and Oxidation Stability, 72 hrs. @ 93oC
         Corrosion stability: Cu Wt. loss, mg/cm2
         no pitting or etching
         Oxidation stability: Viscosity change
         Neutralization number mq/KOH
    Evaporation, 6 hours, 66oC, % weight lossASTM D9725.4
    Emulsion Stability/ Water Sludging after 24 hoursspecPass
    Low Temperature Turbidity, -37oC, 72 hoursspecPass
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