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 5905-00-422-4131
NSN 6685-00-535-0639
NSN 6685-01-220-6272
NSN 6145-01-134-7598
NSN 5855-01-286-2916
NSN 5998-00-704-4404
NSN 6105-01-359-7843
NSN 5990-00-543-2755
NSN 6220-00-625-8554
NSN 5975-01-234-2947
NSN 2925-01-594-5385
NSN 5945-01-080-2238