MIL-PRF-10924H
(see 4.1.1.1), shall not exceed the maximum (max.) or fall below the minimum (min.) limits as
specified in Table I.
TABLE I. Finished grease properties.
Characteristics
Limits
Dropping point, °C, minimum 1/
220
Worked penetration (1/10 mm)
265-295
Oxidation stability (PDSC) at 210 ēC, minimum, min
15
Corrosiveness (copper strip), maximum 2/
1b
Water stability, after 10 0000 Double strokes, +10.0% water,
Penetration (1/10 mm),
-25 to +60
Life performance (four test runs) at 160°C, hours, minimum
100
Evaporation loss (TGA) at 180°C, 1 hr - Percent, maximum
10.0
Oil separation @ 180 ēC, %, maximum
8.0
Wear preventive characteristics - Avg. scar dia. mm, maximum
0.60
Load carrying capacity
35.0
Load wear index, kgf, minimum
Welding point, kg, min
250
Low temperature torque, N⋅m, maximum at -54°C
7.00
Breakaway
5.00
Running (at 5 min)
Worked stability, after 10 0000
Double strokes, penetration (1/10 mm),
-25 to +60
Elastomer compatibility
CR:
Volume change, %
0 to + 40
Hardness change, Durometer-A points
0 to 15
NBR-L: Volume change, %
-5 to +30
Hardness change, Durometer-A points
+2 to -15
Salt water corrosion resistance
Pass
Roll stability, penetration (1/10 mm), Minimum/maximum
-25 to +60
Biodegradability, minimum, %
60
1/ °C = degrees Celsius
2/ The grease shall show no green color in that portion contacting the copper strip. The
copper strip shall not tarnish more than a classification of l b when compared with the
ASTM copper strip corrosion standards (ASTM D4048).
3.4 Support and ownership requirements. The grease shall meet all support and
ownership requirements as specified in 3.4.1 through 3.4.5.
3.4.1 Hazardous materials. The grease shall not contain carcinogenic or potentially
carcinogenic constituents as defined under the Hazard Communication Standard
29 CFR 1910.1200.
4
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