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 6320-01-228-2380
NSN 6650-01-239-2759
NSN 5996-01-213-5184
NSN 6650-01-519-3818
NSN 5910-01-629-8890
NSN 5935-00-144-8017
NSN 6145-01-218-0850
NSN 6240-00-491-0517
NSN 6220-01-197-8865
NSN 6135-01-565-3284
NSN 5975-01-043-3084
NSN 5975-01-235-3094