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 5985-01-525-4080
NSN 5855-01-380-9950
NSN 5855-00-256-5562
NSN 6145-00-078-9917
NSN 5915-01-278-3433
NSN 6685-01-466-7828
NSN 6650-01-605-2302
NSN 5935-01-429-0135
NSN 5960-01-654-4353
NSN 5835-00-617-3578
NSN 6645-00-486-8649
NSN 5835-00-683-4612