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 5905-01-047-7796
NSN 4140-01-123-2182
NSN 5920-01-640-6282
NSN 6150-01-279-0876
NSN 5985-01-558-1135
NSN 6645-00-359-5463
NSN 6135-01-184-0727
NSN 5835-01-123-8305
NSN 5945-01-551-7623
NSN 5950-00-624-3518
NSN 7035-01-391-7470
NSN 5835-01-408-7576