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 5960-01-290-6919
NSN 6220-00-280-2880
NSN 2925-01-459-8093
NSN 6650-01-246-3265
NSN 5945-01-324-8066
NSN 5935-00-840-4904
NSN 5965-01-481-6058
NSN 6685-01-359-7872
NSN 6685-01-367-2927
NSN 6685-01-259-0658
NSN 6650-01-644-7722
NSN 5945-00-710-7655