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 6105-01-053-6681
NSN 5998-01-163-1808
NSN 5915-01-513-6355
NSN 5960-00-647-9159
NSN 6320-01-445-5893
NSN 5985-00-624-8929
NSN 6220-00-340-1313
NSN 6320-00-456-0836
NSN 5915-01-361-7169
NSN 6105-01-377-6284
NSN 5855-01-618-1921
NSN 6645-00-508-5723