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 5895-00-173-7881
NSN 6320-01-648-5538
NSN 5998-01-329-4690
NSN 5855-01-147-6024
NSN 6320-01-160-8578
NSN 5985-01-106-4628
NSN 6135-01-226-4071
NSN 5950-00-661-2612
NSN 5950-01-457-9878
NSN 6150-01-415-0535
NSN 6105-00-314-4176
NSN 6240-01-553-6007