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 6320-01-364-1840
NSN 6620-01-093-1383
NSN 6610-00-371-5953
NSN 5998-01-314-0968
NSN 5915-00-907-0579
NSN 5999-00-905-8837
NSN 5945-00-446-4578
NSN 5835-01-080-7784
NSN 5996-01-074-0544
NSN 6145-01-519-8210
NSN 5999-01-169-8031
NSN 6610-00-093-4178