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 5975-00-228-9161
NSN 6610-01-511-5260
NSN 5920-00-708-8624
NSN 5935-00-109-0699
NSN 5945-01-272-6203
NSN 5975-01-151-5442
NSN 5975-01-338-8422
NSN 6645-01-305-4047
NSN 2925-01-197-7864
NSN 6650-00-954-4428
NSN 5925-01-349-7193
NSN 6105-01-519-8003