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 6320-00-731-6134
NSN 6650-00-605-4058
NSN 5965-00-913-9545
NSN 5835-00-491-3834
NSN 5895-00-745-7800
NSN 5996-01-533-7803
NSN 5960-01-474-4843
NSN 5895-00-450-6930
NSN 6320-00-578-6898
NSN 6130-01-280-3013
NSN 5835-01-013-9321
NSN 6645-00-922-0886