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 5996-01-462-1631
NSN 5935-01-004-7094
NSN 7035-01-400-3666
NSN 5990-00-212-4316
NSN 6220-01-359-8322
NSN 5996-01-424-8650
NSN 5905-01-132-9782
NSN 5905-00-372-5214
NSN 5910-01-197-6615
NSN 4140-01-428-9426
NSN 5930-01-412-1416
NSN 5905-00-269-5452