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 5935-01-481-3099
NSN 5935-01-578-5622
NSN 5960-01-366-3260
NSN 6320-00-368-2803
NSN 5930-01-467-9889
NSN 6105-00-488-9418
NSN 5920-00-276-8657
NSN 6645-00-012-5834
NSN 4140-01-556-2843
NSN 5985-01-426-7835
NSN 2925-01-633-4048
NSN 5960-01-364-1318