An item of any peripheral shape usually having one flat or spherical surface and a centrally located hole. It is designed for applications involving moving (kinetic) loads. Except for items fabricated from bearing quality synthetic (plastic) or composed of multilayer material, one bearing surface must either have a specific surface finish designation of 32 microinch (0.8 micrometre) or less, arithmetical average (aa) (arithmetic mean deviation) or one of the following conditions: be lapped or ground; have visible or detectable means of lubrication; grooves, indentations; or self-lubrication. The thickness must not exceed 25 percent of the outside diameter of the shortest distance between peripheral flats (when thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance). Excludes straight, tubular (without flange) items having a bearing surface(s) parallel to the axis of the bore only. See also washer, flat and spacer, sleeve.
Classification: Parts of armored fighting vehicles,motorized, whether or not fitted with weapons
NSN 2925-00-246-3077
NSN 6145-00-842-3493
NSN 4140-01-486-2839
NSN 6610-01-381-3181
NSN 6150-01-521-3031
NSN 6110-01-168-8600
NSN 6650-00-973-9533
NSN 6650-00-252-6271
NSN 5965-01-324-6583
NSN 5930-01-182-8314
NSN 5965-01-338-2181
NSN 5855-01-210-0503