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 2925-01-543-5571
NSN 5965-01-332-0522
NSN 5905-00-424-3099
NSN 6150-00-239-6619
NSN 5915-01-278-9176
NSN 5965-01-513-5855
NSN 5945-01-269-6007
NSN 6620-01-164-4913
NSN 5915-01-403-2599
NSN 5975-01-594-6894
NSN 5915-00-518-0851
NSN 5855-01-375-6690