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 5985-01-191-5843
NSN 5910-01-175-0231
NSN 6110-01-023-9562
NSN 6610-00-680-8325
NSN 5998-01-424-1009
NSN 6610-01-462-5980
NSN 6145-01-142-5732
NSN 7035-00-188-6674
NSN 5915-00-342-9261
NSN 5998-01-130-8322
NSN 5920-01-428-4412
NSN 6105-01-634-0322