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 5915-01-627-5915
NSN 4140-00-228-9005
NSN 5945-01-435-1083
NSN 6610-01-476-7412
NSN 5930-01-470-1419
NSN 5975-01-358-4313
NSN 5835-01-534-3172
NSN 6320-01-407-8663
NSN 6620-01-201-6080
NSN 5855-01-171-9841
NSN 5996-01-502-7535
NSN 6135-01-452-2421