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 5985-01-130-7760
NSN 5950-00-146-1931
NSN 5935-00-155-4662
NSN 6110-00-327-0806
NSN 2925-01-164-9579
NSN 5975-01-603-7885
NSN 5895-01-333-1013
NSN 6220-01-202-8855
NSN 6150-01-413-4162
NSN 5855-01-521-8616
NSN 5999-01-484-9333
NSN 5985-00-832-9988