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 5945-01-268-1280
NSN 6610-00-978-5133
NSN 5835-01-339-0542
NSN 6110-01-467-2882
NSN 6105-01-415-1422
NSN 5915-01-266-9481
NSN 6130-01-464-9558
NSN 5935-01-319-3077
NSN 6135-01-645-4653
NSN 6645-01-077-9350
NSN 6110-01-370-4234
NSN 5990-01-147-5225