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 5910-01-198-3914
NSN 6645-01-368-8284
NSN 5945-01-326-2729
NSN 7035-01-512-1826
NSN 5935-00-908-7683
NSN 5910-01-209-6756
NSN 6130-01-187-5259
NSN 6685-01-147-5617
NSN 5855-00-149-0766
NSN 6645-01-411-5657
NSN 4140-01-390-5258
NSN 5985-00-406-1141