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 6220-00-019-1945
NSN 6150-00-753-3950
NSN 5835-01-502-9228
NSN 5935-01-141-7994
NSN 5990-00-434-0620
NSN 6645-01-302-9608
NSN 6105-00-547-3885
NSN 5925-01-046-4918
NSN 5998-00-424-9174
NSN 5915-01-533-4241
NSN 6145-00-316-2608
NSN 5930-01-185-4437