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 5999-01-537-4364
NSN 6320-01-631-7828
NSN 5855-01-330-3669
NSN 6145-01-608-4249
NSN 5935-01-258-5797
NSN 6130-00-047-4805
NSN 5950-00-635-9746
NSN 2925-01-327-3069
NSN 5915-01-045-4135
NSN 5999-01-540-7884
NSN 5935-01-353-3998
NSN 4140-01-488-5980