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 4140-01-167-7574
NSN 6610-00-515-6462
NSN 6105-01-397-2291
NSN 5965-01-233-2759
NSN 5915-01-358-6024
NSN 6135-01-166-5042
NSN 5930-01-147-6035
NSN 5996-01-521-3234
NSN 7035-01-476-2138
NSN 5965-01-100-1195
NSN 6645-01-647-9082
NSN 6620-01-586-0876