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 5965-01-100-0942
NSN 6145-01-040-7572
NSN 6220-00-607-5961
NSN 5998-01-437-6506
NSN 6645-01-091-0009
NSN 2925-01-547-4565
NSN 6620-00-646-9474
NSN 6610-01-212-9817
NSN 6610-01-473-5678
NSN 5835-01-644-8013
NSN 6320-01-536-3077
NSN 5935-01-576-1108