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 5990-01-583-2870
NSN 5920-01-183-3125
NSN 6610-01-633-8931
NSN 6620-01-053-6650
NSN 5996-01-633-7979
NSN 6110-01-422-6794
NSN 5945-00-983-9145
NSN 7035-01-485-9723
NSN 5965-01-194-3453
NSN 5910-00-627-1959
NSN 5935-01-506-1053
NSN 5945-01-202-9323