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 5855-01-462-8964
NSN 5990-00-467-7431
NSN 6130-01-207-1414
NSN 6320-01-488-5581
NSN 6130-01-142-2698
NSN 5998-01-139-6720
NSN 5920-01-076-7045
NSN 5855-01-379-9978
NSN 5985-01-439-8277
NSN 6320-01-261-2848
NSN 5999-01-622-3619
NSN 6130-00-335-9712