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 5985-01-378-7359
NSN 5905-00-568-4371
NSN 6320-00-456-0836
NSN 6105-00-957-5703
NSN 6220-01-363-2762
NSN 5905-01-442-7682
NSN 5910-00-317-7913
NSN 5835-01-481-4204
NSN 5990-00-020-1048
NSN 6620-00-096-6306
NSN 5910-00-348-6910
NSN 6320-01-295-9992