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 5835-01-317-4840
NSN 5945-00-574-3798
NSN 4140-01-053-2999
NSN 5895-00-427-1790
NSN 5998-01-518-5860
NSN 5999-00-156-4424
NSN 5920-00-510-7656
NSN 6240-01-526-7288
NSN 6610-00-010-3085
NSN 5910-01-463-8455
NSN 5905-01-311-3389
NSN 5920-01-632-8219