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 5925-01-503-0149
NSN 5935-01-049-1621
NSN 4140-01-452-9428
NSN 5965-00-630-7872
NSN 6150-00-256-6466
NSN 5998-01-381-5691
NSN 5835-01-632-6627
NSN 4140-00-404-6444
NSN 4140-01-321-9085
NSN 5945-00-155-4290
NSN 6650-01-376-6965
NSN 5996-01-597-4912