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 5996-01-196-8541
NSN 5920-01-633-2135
NSN 5915-00-973-1322
NSN 6105-01-559-9127
NSN 5915-01-578-6153
NSN 5855-01-312-5160
NSN 6650-01-173-3060
NSN 5920-01-326-6143
NSN 5998-01-174-2174
NSN 4140-01-290-0164
NSN 5950-00-938-9428
NSN 5950-01-519-8947