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 6220-01-516-4926
NSN 6145-01-577-9233
NSN 6150-01-438-2182
NSN 5930-01-634-0659
NSN 6650-01-594-3888
NSN 5985-01-227-5524
NSN 6620-01-491-1434
NSN 5930-01-154-5820
NSN 6320-00-116-3658
NSN 5945-01-441-9370
NSN 6110-01-527-2296
NSN 5920-01-430-6921