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 5855-01-594-0172
NSN 5925-00-878-4077
NSN 6320-00-228-5678
NSN 5835-01-392-7683
NSN 5835-01-566-5462
NSN 5925-01-363-9128
NSN 6145-00-876-4449
NSN 2925-01-468-7073
NSN 2925-01-251-7386
NSN 5835-01-209-6410
NSN 6620-01-083-4672
NSN 5998-01-584-1590