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 5999-01-398-4934
NSN 5895-00-522-7935
NSN 5925-00-500-9664
NSN 5965-01-226-7077
NSN 6650-01-212-3964
NSN 5945-01-584-6018
NSN 7035-00-803-3056
NSN 5930-00-081-6114
NSN 6145-01-078-5217
NSN 5925-01-553-5092
NSN 5935-01-336-2828
NSN 6150-01-364-9904