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 6320-00-139-1090
NSN 6240-00-519-3399
NSN 5965-01-570-4711
NSN 5930-00-497-5639
NSN 6135-01-429-9029
NSN 6240-01-426-5581
NSN 5985-00-788-0293
NSN 5925-01-049-7364
NSN 5945-01-297-6794
NSN 6240-01-522-7045
NSN 5855-01-098-9038
NSN 5985-00-935-5074