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 6240-01-195-1750
NSN 5975-01-081-5095
NSN 5915-01-235-2144
NSN 5999-00-927-8454
NSN 5950-00-044-5800
NSN 5999-00-619-4566
NSN 4140-01-088-5961
NSN 6130-00-855-2396
NSN 5990-01-127-8311
NSN 6110-00-542-2202
NSN 6135-01-552-1568
NSN 6650-00-238-1199