MIL-DTL-17111E
TABLE I. Physical and chemical requirements of base stock.
Property
Value
Neutralization number, maximum
0.05
(may be acid or base)
Aniline point, minimum (see 3.2.3.1)
77 °C
Aniline point change, maximum (see 3.2.3.2)
2.8 °C
Precipitation number, maximum
0.05
3.2.3.1 Aniline point. The aniline point of the base stock submitted for inspection tests
shall not be more than 2 °C below the aniline point of the original sample submitted for
acceptability tests. The aniline point shall not be less than 77 °C.
3.2.3.2 Aniline point change. The aniline point of the base stock remaining shall not be
more than 2.8 °C higher than that of the original base stock.
3.2.4 Physical and chemical requirements of finished fluid. The finished power
transmission fluid shall conform to the physical and chemical requirements as shown in table II
TABLE II. Physical and chemical requirements of finished fluid.
Property
Value
1,000 mm2/s
Viscosity at -35 °C, maximum
(see note)
500 mm2/s
Viscosity at -20 °C, maximum
25 mm2/s
Viscosity at +40 °C, minimum
8 mm2/s
Viscosity at +100 °C, minimum
Pour point, maximum
-40 °C
Flash point, open cup, minimum
104 °C
Fire point, open cup, minimum
113 °C
Neutralization number, maximum
0.3
(may be acid or base)
Precipitation number, maximum
0.05
Water
0.0 percent
Color, ASTM D1500, maximum
2
2
NOTE: mm /s = millimeters squared per second
3.2.4.1 Low temperature turbidity. A dry sample of the fluid shall be stored at a
temperature of -37 °C for not less than 72 hours. After that time at the storage temperature, the
fluid shall show no evidence of gelling, crystallization, or separation, and shall develop a turbidity
not greater than that exhibited by a standard suspension of barium sulfate in water.
4
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