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 6220-01-568-0844
NSN 5935-01-491-4471
NSN 4140-01-606-4645
NSN 6240-01-341-6348
NSN 5960-01-350-4288
NSN 5975-01-227-2389
NSN 6645-00-376-4829
NSN 6110-01-599-0371
NSN 5910-01-145-2125
NSN 6150-01-600-4806
NSN 5835-01-370-8912
NSN 5905-01-416-6483