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 6650-01-334-9410
NSN 5998-01-205-3092
NSN 6220-00-734-0276
NSN 5990-00-686-5868
NSN 2925-01-140-1015
NSN 6150-01-084-1568
NSN 5985-01-409-1100
NSN 6110-01-652-7327
NSN 5935-01-484-9635
NSN 6220-01-537-7077
NSN 6105-01-268-2290
NSN 5990-00-102-7423