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 5910-01-272-1352
NSN 5998-00-117-4566
NSN 5905-01-497-0125
NSN 5985-00-935-0127
NSN 6130-01-148-6429
NSN 5998-00-537-4437
NSN 6320-01-478-9351
NSN 5895-01-085-5992
NSN 6240-00-051-5163
NSN 5965-01-469-2504
NSN 6105-00-824-4118
NSN 6320-00-925-0558