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 6220-01-600-6699
NSN 5855-00-916-2236
NSN 6135-00-377-9165
NSN 5930-00-905-5349
NSN 5910-01-508-7429
NSN 5990-01-658-9964
NSN 5925-01-625-9785
NSN 6650-01-418-9471
NSN 5905-01-006-0838
NSN 6130-01-542-8182
NSN 5935-01-454-6656
NSN 5905-00-234-7810