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TO 1-1-700 - Robins Air Force Base

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<strong>TO</strong> 1-1-<strong>700</strong><br />

• Do not use solid film lubricants in areas subject to<br />

rotational speeds above 1000 rpm under heavy<br />

loads or on roller bearing elements because they<br />

will not provide adequate lubrication in these situations.<br />

• Do not use solid film lubricants in conjunction<br />

with oils or greases as they are not compatible.<br />

7.4.2 Solid Film Lubricants. Solid film lubricants are used<br />

where conventional lubricants are difficult to apply or retain or<br />

where other lubricants may be contaminated with dust, wear<br />

products, or moisture and to reduce fretting corrosion on close<br />

tolerance fittings that see primarily static loads with only very<br />

small relative movement caused by vibration. Typical applications<br />

of solid film lubricants are sliding motion components<br />

such as hinges, turnbuckles, and cargo latches.<br />

7.4.2.1 As with paints, surface preparation prior to application<br />

is extremely important to the service wear life of solid<br />

film lubricants. In reality, solid film lubricants are nothing<br />

more than paints with solid (powder) type lubricants used as<br />

the pigment. They are usually applied over surfaces pre-coated<br />

with other films, such as anodize (aluminum and magnesium<br />

base material), phosphate (steel base material), and sometimes<br />

over organic coatings such as epoxy primers.<br />

Table 7-2. Common Military Greases and Their Uses<br />

Specification and<br />

Nomenclature<br />

Intended Use<br />

Recommended<br />

Temperature Range<br />

AMS-G-4343 Grease, Pneumatic<br />

System (NA<strong>TO</strong> Code<br />

G-392)<br />

AMS-G-6032 Grease, Plug,<br />

Valve, Gasoline and Oil Resistant<br />

(NA<strong>TO</strong> Code G-363)<br />

MIL-G-21164 Grease, Molybdenum<br />

Disulfide, for Low and<br />

High Temperatures (NA<strong>TO</strong> Code<br />

G-353)<br />

MIL-PRF-23827 Grease, <strong>Air</strong>craft<br />

and Instrument, Gear and<br />

Actuator Screw (NA<strong>TO</strong> Code G-<br />

354)<br />

MIL-G-25013 Grease, <strong>Air</strong>craft,<br />

Ball and Roller Bearing (NA<strong>TO</strong><br />

Code G-372)<br />

Lubrication between rubber and metal parts of<br />

pneumatic systems; pressurized cabin bulkhead<br />

grommets and other mechanisms requiring rubber<br />

to metal lubrication.<br />

Tapered plug valves; gasket lubricant or seal; general<br />

plug valve and fitting use where gasoline, oil,<br />

alcohol, or water resistance is required.<br />

Heavily loaded steel sliding surfaces, accessory<br />

splines, or anti-friction bearings carrying high loads<br />

and operating through wide temperature ranges<br />

where molybdenum disulfide will prevent or delay<br />

seizure in the event of inadequate lubrication. This<br />

grease is not intended for use in wheel bearings.<br />

Lubrication of ball, roller, and needle bearings,<br />

gears, and sliding and rolling surfaces of equipment<br />

such as instruments, cameras, electronic gear and<br />

aircraft control systems that are subject to extreme<br />

marine and low temperature conditions; rolling and<br />

sliding surfaces of equipment with low motivating<br />

power (low torque equipment); general use on aircraft<br />

gears, actuator screws, and other equipment<br />

with high load carrying capacity. Its extremely low<br />

volatility makes it useful on aircraft optical equipment<br />

since it will not produce oil fogging.<br />

Lubrication of ball and roller anti-friction bearings<br />

that operate at extreme high or low temperatures,<br />

especially in applications where soap-type petroleum<br />

or synthetic oil greases and oils cannot be<br />

used. Can be used on aircraft actuators, gearboxes,<br />

and similar equipment.<br />

-65 to 200 °F (-54 to 93 °C)<br />

-32 to 200 °F (0 to 93 °C)<br />

-100 to 250 °F (-73 to 121 °C)<br />

-100 to 250 °F (-73 to 121 °C)<br />

-100 to 450 °F (-73 to 232 °C)<br />

7-15

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