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 6650-01-508-3651
NSN 5965-01-139-5472
NSN 5895-01-650-7650
NSN 6110-01-289-4136
NSN 5915-01-572-5093
NSN 6610-00-465-7461
NSN 5990-01-353-3691
NSN 5985-01-063-7012
NSN 5945-00-168-2801
NSN 6220-00-777-7156
NSN 6240-00-082-1142
NSN 5920-01-143-2212