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 5915-01-563-1832
NSN 5935-00-491-9498
NSN 5999-01-439-0361
NSN 5996-01-479-9637
NSN 5996-01-186-3699
NSN 4140-00-555-3856
NSN 6240-01-420-0290
NSN 6610-01-307-6363
NSN 6320-00-115-0883
NSN 6130-01-081-1714
NSN 7035-01-189-7367
NSN 5998-00-336-2396