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 5985-01-081-0899
NSN 6110-01-270-8137
NSN 6240-01-165-2693
NSN 6220-01-409-1585
NSN 6685-01-617-3822
NSN 6130-00-115-6591
NSN 5965-01-602-8072
NSN 2925-00-730-3115
NSN 5950-01-320-2844
NSN 5915-00-011-1612
NSN 5965-01-148-4979
NSN 5950-00-117-7198