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 6240-01-017-8281
NSN 5945-00-027-9638
NSN 5920-00-240-7957
NSN 6240-01-134-2419
NSN 5996-01-573-7953
NSN 5945-01-279-9951
NSN 7035-01-012-2259
NSN 5910-00-173-5874
NSN 2925-01-061-4012
NSN 5960-01-354-0762
NSN 5835-01-406-4066
NSN 5930-00-685-0588