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 5998-00-147-7058
NSN 4140-01-462-5901
NSN 6130-01-591-3989
NSN 5996-01-200-7282
NSN 6620-01-068-4498
NSN 5855-01-634-0259
NSN 6130-00-017-4938
NSN 5905-00-769-8695
NSN 5910-00-499-6330
NSN 5998-00-393-3152
NSN 6610-00-474-2286
NSN 5960-01-139-3136