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 6320-01-631-7828
NSN 6650-00-229-3790
NSN 7035-01-423-8343
NSN 6130-01-555-5740
NSN 5965-01-205-6249
NSN 5925-01-494-0085
NSN 6150-00-099-6919
NSN 5999-00-317-6262
NSN 6610-01-241-9120
NSN 6105-00-165-4236
NSN 5910-01-415-0273
NSN 5975-00-167-9575