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 6320-00-886-9771
NSN 5945-01-139-3996
NSN 5905-00-596-9969
NSN 6620-01-239-7554
NSN 6145-00-923-4332
NSN 5935-00-283-7254
NSN 5920-01-464-6655
NSN 6650-00-021-9555
NSN 5960-00-960-6805
NSN 5835-01-254-8584
NSN 6220-00-186-8565
NSN 6130-01-386-1380