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 5835-00-594-4921
NSN 5945-01-357-7034
NSN 6240-01-401-5340
NSN 5930-01-271-2274
NSN 6620-01-519-1387
NSN 6240-01-100-1279
NSN 5975-01-384-4895
NSN 5996-00-810-0197
NSN 5945-01-541-3754
NSN 7035-01-265-0216
NSN 5920-00-084-6046
NSN 6150-01-428-4496