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 5950-00-191-1672
NSN 5855-00-149-0766
NSN 6135-01-167-7604
NSN 7035-01-003-9142
NSN 5985-00-866-6470
NSN 6105-01-099-1113
NSN 6320-00-194-4252
NSN 5960-00-759-2534
NSN 5835-01-580-0446
NSN 5935-00-258-5880
NSN 5925-01-378-8617
NSN 5960-01-451-6993