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 5930-01-414-5241
NSN 5925-00-382-3574
NSN 6240-00-960-8458
NSN 6105-01-527-4147
NSN 5930-00-190-5786
NSN 5910-00-688-7580
NSN 5945-01-268-1827
NSN 5945-01-106-1703
NSN 5855-01-063-6340
NSN 6610-01-045-9419
NSN 6610-01-445-2789
NSN 6620-00-534-7373