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 6650-01-613-3642
NSN 5905-01-152-7987
NSN 6620-01-595-7459
NSN 5910-01-332-3230
NSN 5855-01-218-3735
NSN 5905-01-493-6622
NSN 5996-01-645-4831
NSN 5910-01-419-8613
NSN 6105-01-449-1862
NSN 5999-00-156-4424
NSN 4140-01-604-8073
NSN 5965-01-169-1194