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 6135-00-919-1117
NSN 5950-00-244-1567
NSN 5855-00-256-5562
NSN 5945-00-354-2831
NSN 6220-01-017-5492
NSN 5835-00-733-9145
NSN 5965-00-568-5802
NSN 6220-00-851-2307
NSN 5915-01-570-7410
NSN 5998-01-467-2423
NSN 5930-01-031-4232
NSN 6110-01-550-9658