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 5975-01-157-1444
NSN 6150-00-108-6350
NSN 5905-01-624-7921
NSN 5910-01-278-7131
NSN 5935-01-616-5304
NSN 5855-01-041-3432
NSN 6150-01-081-2248
NSN 5945-01-062-6242
NSN 6150-01-634-0575
NSN 5905-00-779-2603
NSN 5895-01-150-3321
NSN 5950-01-043-7439