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 5905-00-883-3142
NSN 5960-01-122-7310
NSN 6645-00-408-7443
NSN 5950-01-305-1821
NSN 6135-00-660-8654
NSN 5996-01-251-2561
NSN 6220-00-333-4568
NSN 5930-01-270-4051
NSN 6645-00-376-4829
NSN 6130-00-429-8089
NSN 5950-01-049-7936
NSN 5950-00-866-8389