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 6320-01-607-1491
NSN 5950-00-985-5112
NSN 6150-01-628-8775
NSN 5905-01-526-3290
NSN 5985-01-580-0140
NSN 5935-01-420-9774
NSN 6610-01-445-6362
NSN 6645-01-141-4425
NSN 6645-01-225-8106
NSN 5925-00-356-8007
NSN 6135-00-686-4777
NSN 5935-01-542-9585