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 5998-00-489-7237
NSN 5990-01-485-8874
NSN 4140-01-566-9734
NSN 5999-00-979-7727
NSN 6130-01-634-0603
NSN 5930-01-570-0431
NSN 6320-01-397-9995
NSN 6320-00-931-4855
NSN 7035-01-581-7449
NSN 6610-01-580-0766
NSN 6105-00-248-0110
NSN 5950-01-400-3577