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 5960-01-470-1579
NSN 6685-01-578-0967
NSN 5945-01-575-0755
NSN 5920-01-240-2362
NSN 5895-00-483-9720
NSN 5975-01-116-4917
NSN 5915-01-186-7952
NSN 5999-00-106-1528
NSN 5935-01-435-6062
NSN 5996-00-438-3154
NSN 5855-00-586-6255
NSN 6145-01-319-2182