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 5835-00-876-4544
NSN 5915-01-138-3321
NSN 6220-00-610-0968
NSN 4140-00-419-0631
NSN 6110-01-084-4215
NSN 5985-01-190-6900
NSN 2925-00-321-2032
NSN 6645-00-810-7229
NSN 5998-01-423-8355
NSN 7035-01-609-5666
NSN 6645-00-359-5463
NSN 6110-01-026-3328