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 5975-01-284-8669
NSN 5975-01-127-1314
NSN 5920-01-265-1873
NSN 5935-00-188-5844
NSN 6240-01-345-3263
NSN 6110-01-421-2308
NSN 5950-01-200-6673
NSN 5998-00-869-5783
NSN 5895-01-268-1680
NSN 6620-00-430-5727
NSN 2925-01-603-6379
NSN 5965-01-103-2711