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 5915-01-450-7025
NSN 5965-00-335-0305
NSN 6620-01-467-2111
NSN 5965-01-633-8849
NSN 6650-01-522-0075
NSN 5925-01-521-2532
NSN 7035-01-132-4034
NSN 5950-01-246-3984
NSN 5930-00-846-3646
NSN 6130-01-434-0450
NSN 6320-01-084-8821
NSN 7035-01-640-8636