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 5945-01-227-5095
NSN 6150-01-618-9747
NSN 5895-01-094-0634
NSN 5935-01-314-4313
NSN 6240-01-341-3921
NSN 6650-00-518-6318
NSN 5950-00-651-7484
NSN 6620-01-304-1761
NSN 5935-01-659-0698
NSN 7035-01-154-0796
NSN 6610-00-220-3840
NSN 5930-00-410-1948