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 5998-00-248-4964
NSN 2925-00-728-4558
NSN 5910-01-294-2239
NSN 6320-01-476-7702
NSN 6620-01-658-8133
NSN 5910-00-842-3451
NSN 6645-00-966-0251
NSN 2925-01-554-5246
NSN 5855-01-565-9428
NSN 5990-01-261-2962
NSN 5996-00-866-7766
NSN 5915-01-429-9287