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 6150-00-596-8766
NSN 6130-01-437-9184
NSN 5975-00-999-2140
NSN 5960-01-467-0961
NSN 5985-01-072-8568
NSN 5910-01-146-6683
NSN 6105-01-657-9658
NSN 6610-01-163-4551
NSN 6620-00-593-5313
NSN 5920-01-547-4065
NSN 6645-00-056-1580
NSN 5920-01-607-6904