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 5915-01-185-5939
NSN 5905-01-099-9496
NSN 5930-01-351-5664
NSN 6135-01-506-0759
NSN 6220-01-593-8778
NSN 6220-01-537-9654
NSN 6620-00-957-9325
NSN 5945-01-070-4856
NSN 6105-00-840-6433
NSN 6135-01-019-7687
NSN 6110-01-227-2617
NSN 5998-01-556-7406