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 6650-01-412-1040
NSN 5999-01-475-1248
NSN 7035-01-352-6235
NSN 5965-01-603-0118
NSN 6150-00-782-7366
NSN 6150-01-208-6557
NSN 5965-01-337-1217
NSN 6620-01-122-0238
NSN 5920-00-960-7614
NSN 6130-01-027-4425
NSN 6650-01-560-5748
NSN 5920-01-495-3817