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 5985-00-375-1837
NSN 6620-01-544-4857
NSN 6130-00-635-9853
NSN 5996-00-826-8837
NSN 6240-01-605-7426
NSN 5835-00-572-7445
NSN 6130-01-476-2463
NSN 2925-01-583-0736
NSN 5960-01-580-6360
NSN 5935-01-260-2440
NSN 5895-00-706-9826
NSN 6240-01-436-4649