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 5930-01-151-4786
NSN 6650-01-155-3292
NSN 5965-01-328-7979
NSN 6685-01-646-7820
NSN 5998-00-591-8019
NSN 6320-00-450-7014
NSN 6320-00-538-2132
NSN 2925-01-191-9668
NSN 2925-01-483-6248
NSN 5920-00-085-9511
NSN 6240-00-334-6766
NSN 5905-01-288-0417