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 6620-00-820-9616
NSN 5975-01-541-2551
NSN 5996-01-067-8716
NSN 5835-01-502-9228
NSN 5999-01-097-2151
NSN 6645-01-519-2732
NSN 6620-01-484-1303
NSN 6620-01-245-0184
NSN 5999-01-129-5193
NSN 5945-01-314-1441
NSN 2925-01-239-6044
NSN 5975-00-674-7974