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 6130-01-227-6997
NSN 6105-01-376-3200
NSN 6110-01-277-9324
NSN 6650-01-555-8819
NSN 2925-01-147-6688
NSN 7035-01-507-9372
NSN 6610-00-702-8220
NSN 5999-00-114-1486
NSN 6320-01-292-6635
NSN 4140-01-245-5684
NSN 6110-01-481-3470
NSN 4140-01-278-1310