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 5985-01-626-5249
NSN 6240-01-352-3642
NSN 6320-00-149-7570
NSN 5910-01-355-7502
NSN 5935-01-491-5742
NSN 5999-01-499-1369
NSN 6620-01-112-2961
NSN 6650-00-067-3572
NSN 5999-00-607-7627
NSN 5935-01-118-6782
NSN 5910-01-047-5713
NSN 5915-01-316-4760