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 5999-01-472-7679
NSN 5975-01-280-5371
NSN 5985-01-344-8659
NSN 6610-00-848-4764
NSN 7035-01-440-8877
NSN 6610-01-124-4592
NSN 5945-00-158-8773
NSN 5960-00-270-1061
NSN 5998-01-014-4557
NSN 6110-00-967-9007
NSN 5855-01-340-3447
NSN 5855-01-569-7816