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 5945-01-032-6885
NSN 6685-00-638-9261
NSN 6130-00-144-8018
NSN 6145-01-418-7017
NSN 5920-01-642-1570
NSN 5920-01-367-2542
NSN 6110-01-117-5900
NSN 4140-01-155-3101
NSN 5950-01-514-0359
NSN 5998-01-019-4625
NSN 5985-01-580-7791
NSN 5895-01-090-1414