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 5990-01-537-4815
NSN 6240-00-917-3724
NSN 5975-00-903-8280
NSN 6610-01-323-0901
NSN 5855-01-600-0486
NSN 5950-01-541-2642
NSN 6130-01-370-4567
NSN 5935-01-572-5032
NSN 5996-01-612-9407
NSN 5950-01-427-3723
NSN 5920-00-246-5992
NSN 5910-00-586-2641