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 5985-01-197-6999
NSN 4140-01-192-5874
NSN 2925-00-246-3077
NSN 5985-00-125-0708
NSN 5960-01-369-7409
NSN 6240-01-614-4146
NSN 5910-00-336-9846
NSN 5996-00-907-5066
NSN 5945-00-136-4196
NSN 6650-01-106-1868
NSN 6145-01-608-2904
NSN 5999-01-509-8673