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 6110-01-308-8041
NSN 5998-01-485-0288
NSN 5910-00-804-2394
NSN 5920-01-038-7388
NSN 5915-01-630-9771
NSN 5905-01-437-5750
NSN 5960-01-110-9235
NSN 5996-00-058-1907
NSN 5996-01-633-7979
NSN 5998-01-431-1566
NSN 5975-01-030-5406
NSN 6110-01-599-3951