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 5915-01-348-1139
NSN 7035-01-007-1802
NSN 6610-01-212-9817
NSN 6610-01-275-9771
NSN 6320-01-495-1244
NSN 5985-01-519-9295
NSN 6220-01-010-3958
NSN 6110-00-788-8865
NSN 6610-00-872-4303
NSN 5998-01-414-8372
NSN 5965-00-831-0481
NSN 5895-01-189-9481