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 6110-00-837-2282
NSN 6145-00-669-6795
NSN 6130-00-948-6949
NSN 5996-01-328-8706
NSN 5935-00-958-8251
NSN 5855-01-630-5790
NSN 5910-00-063-2722
NSN 5965-00-420-9203
NSN 5999-01-475-9094
NSN 5855-01-147-6024
NSN 5910-01-207-3566
NSN 6650-01-399-8552