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 5915-01-398-9831
NSN 5999-00-458-1364
NSN 5960-01-054-3752
NSN 5910-01-145-5166
NSN 5985-00-325-8278
NSN 6610-01-068-7974
NSN 6135-01-164-3561
NSN 6130-00-151-5001
NSN 5965-01-005-0341
NSN 6105-01-246-5024
NSN 6620-01-652-2078
NSN 5920-01-118-0309