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 5945-01-342-8866
NSN 5910-01-024-2766
NSN 6240-01-023-7720
NSN 2925-00-101-7972
NSN 5905-00-232-4839
NSN 5910-00-144-4383
NSN 6650-01-378-6868
NSN 5990-00-518-0684
NSN 6130-00-281-5062
NSN 6145-00-178-8830
NSN 6150-00-013-5613
NSN 4140-01-383-1605