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 4140-00-314-1025
NSN 5996-01-130-4663
NSN 6135-01-451-2120
NSN 5985-00-103-7019
NSN 4140-00-725-7023
NSN 5835-00-113-6090
NSN 5835-01-273-3916
NSN 6610-01-147-9072
NSN 6620-01-319-3858
NSN 5999-01-210-9829
NSN 5930-01-485-2274
NSN 7035-01-227-2546