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 6135-01-611-0125
NSN 5998-00-367-8427
NSN 2925-01-033-0141
NSN 5935-00-879-5119
NSN 5985-01-079-8346
NSN 5910-01-442-3647
NSN 5965-01-141-6485
NSN 6220-01-201-1489
NSN 5960-01-383-6262
NSN 5910-01-393-2302
NSN 5999-00-666-3838
NSN 5925-00-905-0747