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 5835-01-511-2072
NSN 6645-01-175-2155
NSN 5855-00-189-6066
NSN 5930-00-155-5917
NSN 5915-00-167-4877
NSN 4140-00-383-2537
NSN 5920-01-246-2967
NSN 5910-00-067-6743
NSN 5855-01-459-9254
NSN 6220-00-607-5961
NSN 6240-00-130-5643
NSN 6145-01-413-1678