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 5998-01-566-7145
NSN 5935-00-586-8477
NSN 5925-01-606-7794
NSN 5910-00-780-5684
NSN 5960-01-449-1310
NSN 6220-00-960-7591
NSN 6620-01-095-5558
NSN 5999-01-136-4449
NSN 6240-01-212-9756
NSN 6240-00-803-2777
NSN 5965-01-351-6977
NSN 5960-00-215-5884