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 6150-01-581-3000
NSN 6685-00-866-7807
NSN 6610-00-256-8006
NSN 6240-01-469-2957
NSN 5975-00-072-5008
NSN 5975-00-382-0721
NSN 6240-01-383-7367
NSN 6150-01-335-6893
NSN 6320-01-578-6006
NSN 6130-00-885-8929
NSN 5930-01-145-6803
NSN 6240-00-715-0037