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 5945-01-333-4240
NSN 5965-01-148-4979
NSN 5985-01-147-0405
NSN 6650-00-266-6808
NSN 5855-01-364-8193
NSN 5930-01-600-0260
NSN 5925-00-910-4932
NSN 5915-00-351-7355
NSN 6130-01-616-2107
NSN 5930-01-254-1825
NSN 5930-00-371-3772
NSN 5975-00-519-8421