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 6240-00-155-7786
NSN 5920-01-271-2304
NSN 6130-01-065-7268
NSN 6150-00-821-2847
NSN 5998-00-633-5169
NSN 2925-00-887-7092
NSN 5965-01-579-9141
NSN 5895-01-510-2392
NSN 6150-01-023-1516
NSN 2925-01-014-8007
NSN 5950-01-175-3341
NSN 6110-01-279-0646