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 6240-01-592-0615
NSN 6620-01-236-6290
NSN 6320-00-313-9114
NSN 6145-00-409-6078
NSN 5975-01-079-3062
NSN 5935-01-111-0685
NSN 6320-01-212-8749
NSN 5930-00-020-0300
NSN 5930-01-328-1336
NSN 6135-01-516-4638
NSN 6145-01-453-1919
NSN 5996-00-510-6410