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 5996-00-226-5364
NSN 5999-01-479-6429
NSN 6135-00-271-0407
NSN 6110-01-244-7816
NSN 6620-00-335-7437
NSN 2925-00-419-5868
NSN 5975-01-083-4104
NSN 5945-01-116-6978
NSN 5920-01-384-3387
NSN 5945-00-154-0337
NSN 2925-01-562-1663
NSN 6650-01-281-2148