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 5998-01-588-8565
NSN 6320-00-893-2857
NSN 5945-01-020-7897
NSN 5930-00-145-3722
NSN 5930-01-580-0010
NSN 6620-01-187-7267
NSN 5945-01-196-1776
NSN 5960-01-474-4843
NSN 6130-00-682-3350
NSN 6110-01-064-5076
NSN 5990-00-285-1948
NSN 5950-01-228-3346