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 5835-01-232-1226
NSN 6150-01-041-8377
NSN 5855-00-494-9581
NSN 5935-01-116-4280
NSN 5999-01-246-4247
NSN 6650-01-014-4581
NSN 5990-01-029-0868
NSN 5990-00-768-9341
NSN 6645-00-634-9317
NSN 5975-01-014-4648
NSN 5925-00-224-7426
NSN 6110-01-430-2408