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 5895-01-246-0327
NSN 5925-01-459-5498
NSN 5855-01-149-4110
NSN 6135-00-235-1938
NSN 5935-00-004-7681
NSN 5935-01-589-4234
NSN 5895-01-598-1301
NSN 5985-01-318-0410
NSN 6685-01-141-1578
NSN 6135-01-151-2705
NSN 5925-01-458-5096
NSN 6220-00-080-8472