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 5950-01-289-5205
NSN 5945-01-252-8662
NSN 6130-01-424-7104
NSN 6320-01-407-2285
NSN 4140-00-494-2569
NSN 6220-00-066-3345
NSN 6145-01-392-2208
NSN 5985-01-592-3470
NSN 5996-00-959-2326
NSN 5960-00-789-3753
NSN 6130-01-013-9343
NSN 5905-01-094-6735