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 5935-01-397-5211
NSN 5925-00-359-4087
NSN 6130-01-111-9246
NSN 5965-01-589-3968
NSN 6645-00-930-9356
NSN 6320-00-553-8427
NSN 2925-00-169-3775
NSN 6135-01-571-6889
NSN 6320-01-299-6367
NSN 5935-01-127-3099
NSN 6620-01-137-2003
NSN 5915-01-116-4153