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 5985-00-338-2915
NSN 5855-00-058-1293
NSN 6610-01-579-2984
NSN 5990-01-478-8638
NSN 5990-00-277-3763
NSN 2925-01-269-3861
NSN 5950-00-615-9933
NSN 6620-01-275-8430
NSN 6645-01-624-7209
NSN 2925-00-263-2714
NSN 5855-01-530-0125
NSN 5925-00-818-4811