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 6110-01-252-7722
NSN 6130-01-368-2123
NSN 6610-01-161-4835
NSN 5960-01-090-3519
NSN 5998-01-376-4709
NSN 6645-01-172-4477
NSN 6150-00-958-6078
NSN 5945-00-187-7764
NSN 4140-01-179-0797
NSN 6105-01-415-5555
NSN 5965-01-307-8301
NSN 6645-01-581-8432