MIL-PRF-83282D
conforming to TT-T-656. If TCP is used, the finished fluid shall contain not more than
0.03 weight percent of the ortho-isomer.
3.2.2 Blending fluids. Blending fluids may enhance the finished fluid's rubber swell
characteristic and viscosity at -40°C (see table II). When blending fluids, such as diesters, are
used, their quantity shall be not greater than 33 percent by weight.
3.2.3 Base stock. The synthetic hydrocarbon base of the hydraulic fluid, before the addition
of any other ingredient, shall conform to table I when tested in accordance with table V.
TABLE I. Properties of synthetic hydrocarbon base stock.
Characteristic
Requirement
ASTM Color number
1.0, maximum
Evaporation
14.0 percent by weight, maximum
Fire point
245°C, minimum
Flash point
205°C, minimum
Neutralization number
0.10, maximum
Pour point
-55°C, maximum
Specific gravity at 15.6°C/15.6°C
Report
Viscosity at 100°C
3.5 centistokes (cSt), minimum
Viscosity at 40°C, (cSt)
Report
Viscosity at -40°C
2,600 cSt, maximum
3.2.4 Finished fluid. The finished fluid shall conform to table II when tested in accordance
with table V.
TABLE II. Properties of the finished fluid.
Characteristic
Requirement
Auto-ignition temperature
345°C, minimum (min.)
Barium content
10 parts per million (ppm) (mass percent),
maximum (max.)
1.379 x 106 kPa, min.
Bulk modulus at 40°C
(isothermal secant 0 to 6.9 x 104 kPa)
Color of finished fluid
No difference between the fluid and the standard
color.
Compatibility
Compatible with each of the fluids previously
qualified under this specification.
Miscible with fluids conforming to MIL-H-5606 and
MIL-H-87257 from -40°C to 135°C.
When mixed with the test fluids, there shall be no
formation of resinous gums, sludge, or insoluble
materials.
5
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business