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 6650-01-414-6701
NSN 5960-00-269-4762
NSN 4140-01-314-7365
NSN 5985-00-142-7047
NSN 5965-01-436-0390
NSN 4140-00-064-7847
NSN 5965-00-615-7118
NSN 5950-01-655-9151
NSN 6645-00-409-2168
NSN 4140-01-462-0268
NSN 6645-01-422-9672
NSN 5855-01-492-6913