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 5945-01-161-6202
NSN 6645-01-142-2416
NSN 2925-00-504-0913
NSN 6110-00-602-5951
NSN 2925-01-239-6044
NSN 6320-00-925-0558
NSN 6685-01-352-3204
NSN 6130-01-158-2985
NSN 5935-01-126-5346
NSN 6145-01-542-2672
NSN 5925-01-140-9018
NSN 5945-00-079-0884