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 6220-00-493-9641
NSN 4140-01-142-8340
NSN 5935-01-304-1363
NSN 5915-01-150-8771
NSN 5930-01-245-1570
NSN 6105-00-514-0884
NSN 6645-01-166-3788
NSN 5930-01-391-3472
NSN 6130-01-523-4489
NSN 6105-01-554-7274
NSN 5950-01-309-4891
NSN 6130-01-224-7497