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 5915-00-077-5555
NSN 5999-01-439-7263
NSN 6130-00-279-9769
NSN 6130-01-400-2288
NSN 5945-01-528-5852
NSN 5965-01-551-4802
NSN 5996-01-275-7063
NSN 5999-01-066-4492
NSN 6135-00-793-1809
NSN 5920-00-493-8307
NSN 6135-00-284-1406
NSN 6135-00-062-5080