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 6105-01-108-0291
NSN 5935-01-642-6324
NSN 5990-01-333-2294
NSN 6240-01-631-7690
NSN 5835-01-386-4027
NSN 6135-00-519-1325
NSN 5930-01-628-7652
NSN 6220-00-233-9279
NSN 7035-01-445-3563
NSN 6610-01-652-7448
NSN 5920-00-584-4592
NSN 6135-00-782-6988