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 5915-00-244-1702
NSN 4140-00-421-9772
NSN 6145-01-613-7008
NSN 5950-01-155-5230
NSN 6105-01-607-3526
NSN 6105-01-375-3708
NSN 6130-01-417-2165
NSN 6650-01-028-2820
NSN 5895-00-233-5901
NSN 5985-01-013-9044
NSN 2925-01-244-3016
NSN 6240-01-266-3655