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 6685-01-160-0215
NSN 4140-01-489-5540
NSN 6320-00-343-1798
NSN 6105-01-372-2545
NSN 5996-01-316-4275
NSN 5999-01-640-6896
NSN 5950-00-218-1362
NSN 6110-01-362-8191
NSN 5915-01-435-9221
NSN 5835-01-187-8986
NSN 5935-00-980-7180
NSN 5895-00-635-9227