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 6645-00-484-1992
NSN 6150-01-463-9083
NSN 5855-01-045-9728
NSN 5925-00-592-0881
NSN 5855-01-519-2486
NSN 5950-01-139-6830
NSN 5925-00-421-0910
NSN 6610-01-281-6764
NSN 6650-00-324-4973
NSN 6240-00-146-9322
NSN 6240-01-418-1917
NSN 5910-01-079-6059