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 6145-01-417-3827
NSN 6610-01-125-0776
NSN 5996-00-336-3046
NSN 6320-01-150-5378
NSN 6620-01-535-4358
NSN 4140-01-013-2536
NSN 6650-01-206-0037
NSN 5930-01-007-6164
NSN 2925-00-654-3206
NSN 5935-00-307-4309
NSN 5996-01-627-1138
NSN 5990-00-919-0900