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 5985-01-347-9344
NSN 5935-01-627-8521
NSN 6220-01-646-6342
NSN 6240-01-633-9357
NSN 6650-01-415-3332
NSN 6320-01-172-6103
NSN 5998-01-399-5982
NSN 6220-01-548-5078
NSN 5985-01-146-5679
NSN 5930-00-153-1400
NSN 5905-01-634-0595
NSN 6610-00-128-7780