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 6645-01-311-9794
NSN 5985-01-208-6571
NSN 5990-01-497-0093
NSN 6685-00-118-3625
NSN 5965-00-439-6287
NSN 7035-01-437-9694
NSN 7035-01-540-2746
NSN 6110-01-493-6564
NSN 6645-00-792-1805
NSN 5965-00-553-6898
NSN 2925-00-587-0672
NSN 6135-01-159-3032