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 6240-00-332-2084
NSN 6220-00-424-5630
NSN 6645-01-099-4322
NSN 5935-01-186-0023
NSN 5915-00-185-5355
NSN 5965-00-023-0944
NSN 5965-01-437-9721
NSN 5945-00-720-2923
NSN 6150-01-364-8688
NSN 5920-00-581-4538
NSN 5895-00-793-2146
NSN 5996-01-447-8841