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 6135-00-209-6918
NSN 6220-00-570-0610
NSN 5935-01-545-8918
NSN 5855-00-089-3974
NSN 5999-01-435-4381
NSN 6150-00-518-4558
NSN 5990-01-127-4853
NSN 6130-01-058-0562
NSN 5990-01-336-3976
NSN 6645-01-537-1066
NSN 6110-01-512-9405
NSN 6105-01-170-1139