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 5945-01-241-6469
NSN 5945-00-753-5127
NSN 5855-01-453-6384
NSN 5960-01-023-8800
NSN 5999-01-392-1045
NSN 5975-01-245-1460
NSN 6110-01-289-1284
NSN 6645-00-372-2618
NSN 7035-00-281-4082
NSN 6650-00-349-8732
NSN 4140-00-969-2720
NSN 6650-00-425-7028