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 5925-00-632-6098
NSN 5905-00-064-1132
NSN 6220-01-239-1391
NSN 5905-01-034-2971
NSN 6130-00-699-1083
NSN 6220-00-301-2098
NSN 6240-01-188-7282
NSN 5998-00-316-0379
NSN 6240-01-391-6027
NSN 6645-00-467-6094
NSN 5905-00-256-9313
NSN 6620-00-707-4195