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 5835-01-155-0786
NSN 6320-01-582-0161
NSN 6110-01-262-5083
NSN 5915-00-738-5596
NSN 6650-01-480-2687
NSN 5935-01-456-9362
NSN 6650-00-776-7200
NSN 5996-00-819-4579
NSN 6620-01-321-9813
NSN 5975-01-646-2711
NSN 6650-00-244-5648
NSN 6620-01-415-8550