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 6220-01-388-2269
NSN 5915-00-051-3997
NSN 5990-00-636-4218
NSN 5925-01-415-3084
NSN 5855-01-050-0861
NSN 6130-01-558-1130
NSN 6685-01-426-8929
NSN 6610-01-633-8931
NSN 6685-01-381-0759
NSN 6610-00-253-7676
NSN 5999-00-365-6583
NSN 6135-01-077-5705