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 5990-01-316-6344
NSN 5965-00-164-8092
NSN 5930-01-494-9755
NSN 7035-00-703-3535
NSN 5950-00-235-8977
NSN 5950-01-578-8337
NSN 6645-01-236-6387
NSN 5998-00-421-7389
NSN 5945-00-941-0441
NSN 6320-00-098-2858
NSN 5999-00-902-7929
NSN 2925-00-947-3181