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 6150-00-886-6638
NSN 5945-01-621-2751
NSN 5915-01-546-1529
NSN 5915-00-401-4855
NSN 5895-01-058-6315
NSN 4140-01-026-2725
NSN 6130-01-380-9267
NSN 5965-01-258-5662
NSN 6620-00-035-5813
NSN 6130-00-579-9933
NSN 6105-01-633-8975
NSN 5990-00-193-3028