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 5835-00-231-9544
NSN 5855-01-541-1361
NSN 5855-01-040-3882
NSN 5930-01-302-7188
NSN 6240-01-422-3461
NSN 6620-01-302-1537
NSN 5835-01-602-0311
NSN 5975-00-777-8171
NSN 5905-01-502-6604
NSN 5910-01-367-2738
NSN 5935-01-221-6356
NSN 6220-01-050-8122