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 5915-01-550-1879
NSN 5985-00-703-0999
NSN 5935-01-640-8235
NSN 6610-00-060-0871
NSN 5985-00-904-2353
NSN 6645-01-047-3026
NSN 6320-01-521-1764
NSN 5998-00-937-6975
NSN 5895-00-205-2924
NSN 6150-01-249-0114
NSN 7035-01-150-6303
NSN 6130-01-379-3401