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 5935-01-278-7197
NSN 6145-01-258-0908
NSN 4140-01-634-0330
NSN 6110-00-602-5951
NSN 6130-00-565-7238
NSN 5990-01-060-3687
NSN 6105-00-527-2193
NSN 6650-01-367-5172
NSN 5935-01-481-9168
NSN 6650-01-113-7563
NSN 5835-00-346-4735
NSN 5950-00-372-5591