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 6645-01-142-9769
NSN 6610-01-268-4191
NSN 5895-00-912-4745
NSN 6320-01-462-2295
NSN 5990-01-521-7890
NSN 6650-01-469-5651
NSN 5985-01-534-8399
NSN 5985-01-392-4416
NSN 5999-01-422-2962
NSN 5915-00-995-2559
NSN 6130-01-511-5647
NSN 6220-01-313-8658