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 6645-01-396-6976
NSN 5996-01-645-4720
NSN 5935-01-430-2481
NSN 6145-01-519-0365
NSN 5965-01-167-8513
NSN 6240-00-079-1759
NSN 5960-01-530-8828
NSN 5910-00-309-3450
NSN 6105-01-179-1187
NSN 6645-01-147-4603
NSN 6135-01-333-6101
NSN 5905-01-531-4629