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 5950-00-600-6357
NSN 5985-00-247-0413
NSN 5960-01-413-3877
NSN 5920-01-658-2325
NSN 5835-00-974-9983
NSN 5985-01-416-4961
NSN 5965-00-465-9566
NSN 6610-01-653-8859
NSN 5999-00-858-6483
NSN 5935-01-241-3605
NSN 5945-01-400-5928
NSN 4140-01-364-7845