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 5910-01-179-1879
NSN 5960-01-119-4609
NSN 5935-01-453-4418
NSN 5835-00-180-7555
NSN 5895-01-106-7330
NSN 6240-01-529-9808
NSN 5950-01-132-1618
NSN 6130-01-604-9885
NSN 5910-00-428-4017
NSN 6620-00-363-7528
NSN 5996-00-577-0483
NSN 2925-01-370-6898