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 5960-01-023-8800
NSN 7035-00-870-0290
NSN 6150-01-649-1513
NSN 6650-01-462-5808
NSN 5920-01-536-9253
NSN 5920-01-329-6224
NSN 5835-00-145-8926
NSN 6220-01-558-6496
NSN 5960-01-274-3900
NSN 2925-01-039-6856
NSN 5835-00-460-3645
NSN 6105-01-474-5246