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 5935-00-445-3378
NSN 5910-01-129-9814
NSN 5835-01-307-4512
NSN 6610-01-207-0045
NSN 6685-01-502-8409
NSN 6130-00-187-8885
NSN 6135-00-880-1026
NSN 5965-00-465-9566
NSN 6110-01-250-2936
NSN 6320-01-145-2742
NSN 5910-00-306-5980
NSN 5855-01-035-2866