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 6135-00-519-1325
NSN 5935-00-539-5316
NSN 6135-01-098-3020
NSN 6150-01-040-7739
NSN 6320-01-331-6947
NSN 6150-01-561-5384
NSN 5965-00-064-5435
NSN 5998-01-391-6065
NSN 5985-01-186-3343
NSN 6645-01-259-4231
NSN 7035-00-436-1229
NSN 5920-00-866-3945