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 6645-00-955-1240
NSN 5910-00-067-3241
NSN 6145-01-206-9765
NSN 5930-01-471-5066
NSN 4140-01-648-1455
NSN 5945-01-558-5141
NSN 5985-01-044-6700
NSN 5965-01-623-1731
NSN 6110-00-401-5554
NSN 5835-01-624-5666
NSN 5975-00-616-4291
NSN 5895-00-778-2946