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 6620-00-643-1402
NSN 6130-01-560-7789
NSN 6110-00-102-7797
NSN 6610-01-141-7014
NSN 5935-01-543-7728
NSN 6105-01-524-6854
NSN 6320-01-078-8257
NSN 5910-01-514-0772
NSN 5975-01-123-2147
NSN 6130-00-170-4844
NSN 5910-00-543-3636
NSN 6135-00-951-3426