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 5996-00-581-5810
NSN 6650-01-118-6562
NSN 6220-01-076-1836
NSN 5999-01-434-8785
NSN 6650-00-211-6302
NSN 2925-01-244-3016
NSN 5835-00-553-3575
NSN 2925-01-242-2309
NSN 5990-01-411-7706
NSN 5975-00-141-0531
NSN 5920-01-136-8843
NSN 6610-01-450-5688