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 6110-01-633-9660
NSN 5920-00-964-3999
NSN 5855-01-534-6449
NSN 5996-01-461-0505
NSN 5945-00-374-5988
NSN 5996-01-506-2980
NSN 5960-00-163-3324
NSN 6620-00-675-3342
NSN 5945-01-432-1708
NSN 6150-00-960-4987
NSN 4140-01-495-3049
NSN 5915-01-600-6998