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 5835-01-143-9143
NSN 6105-01-085-6002
NSN 6620-00-560-4406
NSN 2925-00-928-5931
NSN 5925-01-025-0322
NSN 6650-01-318-1829
NSN 5950-00-126-2995
NSN 5950-01-388-3753
NSN 5935-01-353-5509
NSN 5945-01-157-2771
NSN 6110-01-354-5908
NSN 5999-01-370-8431