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: Thrust ball bearings
NSN 5935-01-425-7246
NSN 6220-01-232-1572
NSN 6110-01-262-7266
NSN 6150-00-170-8008
NSN 6650-01-170-4397
NSN 6220-01-607-1917
NSN 5835-01-535-0948
NSN 5835-01-010-3103
NSN 5945-00-352-5124
NSN 5999-01-508-6603
NSN 5965-00-239-3471
NSN 5930-01-069-4587