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 4140-01-034-9806
NSN 5996-01-526-2231
NSN 5895-01-550-9665
NSN 2925-01-436-7325
NSN 6240-01-153-2861
NSN 7035-00-507-5380
NSN 6620-01-424-6925
NSN 6320-01-384-7079
NSN 5975-00-240-4271
NSN 6130-01-466-7384
NSN 5996-00-097-8378
NSN 5915-00-511-8241