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 5998-01-593-6516
NSN 5835-01-024-9249
NSN 5935-00-406-6416
NSN 5999-00-153-0917
NSN 6135-01-370-9440
NSN 5945-00-147-9629
NSN 5905-01-551-4305
NSN 5990-01-234-8646
NSN 6145-00-600-6359
NSN 7035-01-357-0435
NSN 5855-00-782-7714
NSN 5998-01-282-4783