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 5950-00-314-6180
NSN 6320-00-564-2772
NSN 6135-01-411-3212
NSN 5999-01-240-4303
NSN 5835-01-351-8429
NSN 4140-01-111-2486
NSN 6110-00-713-4176
NSN 5935-01-541-5104
NSN 5999-00-497-1140
NSN 7035-01-645-1736
NSN 6135-00-583-3966
NSN 5930-00-445-3664