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 6650-01-454-6878
NSN 5975-01-299-7782
NSN 5996-01-485-1424
NSN 6150-00-269-8447
NSN 6150-01-646-1863
NSN 6620-01-034-1697
NSN 6105-01-209-4866
NSN 5835-00-468-3367
NSN 5998-00-974-6016
NSN 5895-00-131-2431
NSN 6610-00-954-6156
NSN 6610-01-083-3826