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 5935-00-346-2738
NSN 5915-01-010-1562
NSN 4140-00-107-8212
NSN 6105-01-311-1140
NSN 4140-01-339-1293
NSN 6130-00-508-1881
NSN 5905-00-619-2475
NSN 5985-01-263-5206
NSN 6220-00-186-8565
NSN 6240-01-607-4746
NSN 5960-01-558-7787
NSN 4140-00-147-5864