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 5920-01-383-1933
NSN 6650-01-399-8552
NSN 5910-00-804-7672
NSN 5920-01-173-8212
NSN 5985-01-136-3472
NSN 2925-01-545-2717
NSN 5935-01-129-8130
NSN 6220-01-014-5351
NSN 6240-01-525-6585
NSN 5999-00-300-0264
NSN 5895-01-100-4535
NSN 5935-01-517-4353