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 5925-01-334-1891
NSN 5950-00-827-8869
NSN 5920-01-429-9059
NSN 5950-01-087-9767
NSN 6150-01-325-0649
NSN 2925-01-483-9147
NSN 5965-01-259-9591
NSN 6220-01-203-0362
NSN 4140-01-420-6817
NSN 6240-01-309-1806
NSN 6150-01-016-1780
NSN 6650-00-016-9426