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 5835-01-317-4840
NSN 5935-00-469-4403
NSN 5935-00-912-9171
NSN 6135-01-633-8502
NSN 5960-01-187-3103
NSN 6135-00-835-7211
NSN 5975-01-484-9266
NSN 6610-01-283-8888
NSN 6645-00-935-7046
NSN 2925-01-127-0167
NSN 5975-00-065-8289
NSN 5950-01-500-1369