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 5945-01-556-7258
NSN 6130-01-607-0246
NSN 6145-00-223-2885
NSN 6610-00-262-9146
NSN 6135-00-767-0331
NSN 7035-01-423-8343
NSN 5835-01-090-6712
NSN 5985-01-013-4087
NSN 6610-00-500-6944
NSN 5915-01-418-1843
NSN 5905-01-537-0402
NSN 5855-00-896-4047