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 5905-01-208-9591
NSN 5975-01-425-8478
NSN 5895-01-579-5896
NSN 6110-01-535-0995
NSN 5996-00-205-2933
NSN 5935-01-442-8356
NSN 5895-01-480-4910
NSN 6645-00-025-4771
NSN 4140-00-126-4685
NSN 5950-00-526-0658
NSN 5915-01-602-2326
NSN 6150-00-903-4147