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 6220-01-207-1229
NSN 5975-01-616-7639
NSN 5910-01-263-9589
NSN 6650-00-488-8898
NSN 6220-01-049-2847
NSN 6645-00-634-9317
NSN 2925-00-026-0005
NSN 5920-01-171-6541
NSN 2925-00-290-7052
NSN 5975-00-820-9144
NSN 7035-01-646-2515
NSN 5935-01-655-7261