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 5930-00-211-0130
NSN 6145-01-241-0965
NSN 5930-00-513-7940
NSN 5895-01-176-2283
NSN 5950-01-435-5478
NSN 6145-01-541-5422
NSN 5855-01-163-8152
NSN 6320-01-294-7161
NSN 6130-01-040-0281
NSN 5855-00-304-7163
NSN 5915-01-338-9316
NSN 5965-01-176-9052