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 5910-00-957-8577
NSN 6650-01-357-4670
NSN 6620-01-647-8261
NSN 6320-00-024-1004
NSN 5950-00-679-9539
NSN 5950-00-157-3785
NSN 5998-01-426-1574
NSN 5905-00-269-5452
NSN 6645-01-076-4655
NSN 5985-01-359-9182
NSN 5895-00-591-8078
NSN 6240-00-874-3533