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 5945-01-590-1148
NSN 5935-00-147-5406
NSN 6650-01-027-1181
NSN 5930-01-476-7634
NSN 6150-01-370-4177
NSN 6145-01-225-6650
NSN 6220-01-193-9992
NSN 5975-00-827-1107
NSN 5915-01-593-5798
NSN 7035-01-027-8569
NSN 6610-01-084-9562
NSN 6150-01-384-3995