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 5930-01-650-4784
NSN 5920-01-303-6841
NSN 5905-00-586-9573
NSN 5985-01-129-8848
NSN 4140-01-393-0720
NSN 5960-00-248-3065
NSN 5965-00-497-4521
NSN 5999-01-228-9170
NSN 5985-01-391-5404
NSN 5945-01-113-6828
NSN 5990-01-268-4268
NSN 5855-00-231-7790