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 5855-00-466-2309
NSN 6110-01-641-6373
NSN 6620-00-646-9474
NSN 6240-00-760-3713
NSN 2925-01-331-5039
NSN 5910-00-099-9998
NSN 5930-01-278-9966
NSN 4140-01-200-3265
NSN 6650-01-547-6037
NSN 6645-00-845-1071
NSN 5945-00-405-0925
NSN 6130-01-483-2111