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 5985-00-018-8090
NSN 5996-01-624-3209
NSN 6240-01-381-1072
NSN 5930-00-495-3162
NSN 5905-00-229-1234
NSN 6145-01-386-6075
NSN 5855-00-797-8217
NSN 6610-01-350-7697
NSN 5920-00-162-9945
NSN 6610-01-389-3082
NSN 5930-00-952-1808
NSN 5945-00-666-4700