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 5998-01-514-7449
NSN 5998-01-245-3710
NSN 5996-01-483-2847
NSN 6320-01-442-3428
NSN 5925-01-297-2768
NSN 6650-01-104-6139
NSN 6240-01-519-2935
NSN 6645-01-457-3810
NSN 5975-01-476-8101
NSN 5996-01-103-2474
NSN 6150-01-242-9239
NSN 5910-01-021-1518