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 5935-01-282-2817
NSN 5905-01-182-6533
NSN 5935-01-453-1488
NSN 6650-01-626-2889
NSN 6220-01-493-7932
NSN 5905-01-424-2545
NSN 5835-00-198-4936
NSN 5855-01-257-5338
NSN 6145-00-789-3705
NSN 5910-01-574-9765
NSN 4140-01-606-7835
NSN 5895-01-503-0192