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 6240-01-434-9656
NSN 5945-01-605-1480
NSN 5905-01-201-7845
NSN 6150-01-452-8066
NSN 5935-00-817-2718
NSN 5905-01-197-9562
NSN 6150-01-406-0685
NSN 6610-01-500-8108
NSN 5855-01-400-1590
NSN 5855-00-327-2112
NSN 6650-00-146-3282
NSN 4140-01-026-2725