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 5998-01-083-1575
NSN 6645-01-143-0137
NSN 4140-01-648-3652
NSN 5835-01-261-9878
NSN 6240-01-454-9196
NSN 5950-01-588-0804
NSN 5930-00-597-5064
NSN 5960-01-100-5065
NSN 6610-01-495-8898
NSN 6645-01-626-0027
NSN 6130-01-365-3986
NSN 5910-00-281-0886