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 5905-00-186-0942
NSN 5950-00-266-0631
NSN 5905-01-600-8908
NSN 5985-01-177-4338
NSN 6105-00-248-5772
NSN 6150-00-213-1622
NSN 5945-01-587-7021
NSN 5935-01-315-1915
NSN 5998-01-156-6690
NSN 6645-01-236-5892
NSN 5999-00-385-1722
NSN 6610-00-747-9922