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 6240-00-612-0883
NSN 6620-01-502-9104
NSN 5998-00-553-9535
NSN 7035-00-155-9513
NSN 5999-01-534-8984
NSN 6110-01-128-7304
NSN 5930-01-388-1287
NSN 6685-00-097-1549
NSN 6240-01-416-6282
NSN 6145-01-023-1526
NSN 5920-00-245-6434
NSN 5985-01-242-8785