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 6145-01-634-0388
NSN 4140-01-028-0629
NSN 5855-01-323-5394
NSN 6620-00-626-8126
NSN 5998-01-284-5426
NSN 5965-01-650-3845
NSN 5999-00-568-2302
NSN 6685-00-311-5700
NSN 5999-01-435-4381
NSN 6620-01-434-6538
NSN 6220-00-499-9909
NSN 6145-01-576-9609