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 5915-00-337-6698
NSN 6105-00-279-3044
NSN 4140-00-435-0436
NSN 5910-01-187-3311
NSN 6145-01-585-1198
NSN 5950-01-178-3254
NSN 5999-01-474-6224
NSN 5905-00-828-6529
NSN 5930-01-327-8308
NSN 6150-01-254-2764
NSN 6650-00-401-7896
NSN 5855-01-100-3272