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 5965-00-185-9687
NSN 5910-01-366-2812
NSN 5945-01-496-4478
NSN 5990-01-492-6575
NSN 5935-01-055-9242
NSN 6650-01-513-2644
NSN 2925-01-184-2413
NSN 6610-00-273-9019
NSN 6320-00-546-9249
NSN 2925-01-423-3003
NSN 5925-01-337-4928
NSN 6685-01-377-4716