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 5910-01-350-3252
NSN 6610-00-202-5481
NSN 6145-01-169-9657
NSN 6620-01-514-7786
NSN 5999-00-933-0498
NSN 5895-01-531-7679
NSN 6220-01-487-2229
NSN 6135-00-782-6988
NSN 6620-00-583-2687
NSN 5985-00-781-0455
NSN 6145-01-425-3373
NSN 6145-01-118-1556