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 5945-00-287-8022
NSN 5935-00-110-3340
NSN 5950-01-424-1752
NSN 6610-01-574-9829
NSN 6620-01-431-9176
NSN 5999-00-065-3811
NSN 6110-01-334-5053
NSN 5960-01-503-4123
NSN 5945-00-081-6949
NSN 6645-00-269-2764
NSN 5998-00-031-0974
NSN 7035-01-172-0250