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 5935-00-371-2879
NSN 5835-01-007-5800
NSN 6110-00-564-2935
NSN 6220-01-659-3474
NSN 5935-01-172-5829
NSN 2925-00-412-2046
NSN 5996-01-169-4794
NSN 5999-01-522-0964
NSN 6240-00-734-3276
NSN 6135-00-134-6648
NSN 6110-01-306-9235
NSN 5910-01-282-6052