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MIL-L-46147

Revision B, December 2, 1994

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LUBRICANT, SOLID FILM, AIR CURED (CORROSION INHIBITING)



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Description / Abstract:

The solid film lubricant covered by this specification is intended for use on aluminum, aluminum alloys, copper and copper alloys, steel, stainless steel, titanium, and chromium and nickel bearing surfaces. It is useful under the following conditions:

a. Where conventional lubricants are difficult to apply or retain.

b. Where dust and dirt contamination on lubricated surfaces is deleterious.

c. Where temperatures may range from −67 to +93°C.

d. In mechanisms operated at infrequent intervals.

e. In mechanisms that are lubricated for the life of the mechanism.

f. Where long-term corrosion protection is required.

g. Where a dull dark gray or black non-reflective surface is required.

h. Where a sacrificial lubricant is necessary to carry extremely heavy loads developed in the initial start-up of heavily loaded mechanism designed for fluid lubrication.

i. In operations consisting of reciprocating motion, loaded to 15 psi (103 kPa) or less, where contamination with conventional fluid lubricants is probable.

j. To touch up worn surfaces originally coated with lubricant conforming to MIL-L-46010.

k. For sliding motion applications such as plain and spherical bearings, flap tracks, hinges, threads, and cam surfaces.

The lubricant should not be used under the following conditions:

a. In operations consisting of rotary motion above 100 rpm under heavy loads where the possibility of conventional fluid lubricant contamination exists. The cured lubricant film is highly resistant to conventional fluid lubricants, but the high fluid pressures developed in heavily loaded sleeve type bearings drastically reduces the wear life provided by the solid film lubricant film.

b. On bearings containing rolling elements.

This lubricant can be expected to provide corrosion protection for five years in indoor storage and approximately two years protection in outdoor storage when the lubricant is applied over phosphated steel to a thickness of 0.013 mm. Where maximum corrosion protection of steel is desired, the lubricant should be applied over phosphated steel to a thickness of 0.025 mm. This heavier coating can be expected to provide outdoor corrosion protection for approximately four years.