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 5835-01-408-7576
NSN 6135-01-434-6308
NSN 5935-01-023-4872
NSN 6110-01-554-8653
NSN 4140-01-477-1266
NSN 5855-00-411-8688
NSN 5996-01-559-0284
NSN 5945-00-679-3960
NSN 5999-01-167-7936
NSN 6150-00-189-0292
NSN 4140-00-917-2514
NSN 6220-00-149-7467