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 5915-01-313-6589
NSN 5965-01-388-5296
NSN 6620-01-081-1042
NSN 6620-00-110-9166
NSN 6105-00-243-2764
NSN 6620-01-032-3937
NSN 6135-01-116-3385
NSN 6145-01-655-1389
NSN 5855-01-371-9776
NSN 5996-00-155-4586
NSN 5905-01-301-2572
NSN 2925-01-216-4757