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 6650-01-207-0829
NSN 5985-01-323-3713
NSN 5920-01-619-0147
NSN 5996-00-800-7628
NSN 5925-01-467-9181
NSN 6240-01-168-4533
NSN 6135-01-010-0891
NSN 6110-00-477-8372
NSN 5985-01-481-4461
NSN 5835-00-617-3578
NSN 6135-01-142-6456
NSN 6145-01-471-7901