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 4140-01-475-1352
NSN 6220-00-827-0227
NSN 5910-00-270-4083
NSN 5985-00-100-0140
NSN 6130-01-510-0295
NSN 5960-00-630-6630
NSN 6620-01-202-7415
NSN 6150-01-443-8537
NSN 6135-01-301-8776
NSN 6110-00-865-3168
NSN 6130-01-056-4204
NSN 5910-01-009-4483