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 5999-01-364-2939
NSN 6650-00-170-5095
NSN 6650-00-604-1214
NSN 5925-00-135-0208
NSN 5930-01-422-4262
NSN 5835-01-442-6079
NSN 6110-01-359-8715
NSN 5996-00-960-7810
NSN 5925-01-551-1265
NSN 6220-00-082-8093
NSN 5935-00-401-7411
NSN 6150-01-411-1956