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 6620-00-168-0308
NSN 6135-00-962-4111
NSN 5985-01-026-4700
NSN 6620-01-554-0030
NSN 5996-01-466-4577
NSN 6645-00-285-8781
NSN 5935-01-337-0829
NSN 6610-01-192-2467
NSN 6135-01-347-0201
NSN 7035-01-227-7492
NSN 5985-01-479-4469
NSN 6130-01-634-0603