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 6645-01-486-1139
NSN 5999-01-093-2723
NSN 5998-01-233-0719
NSN 5996-00-150-2289
NSN 5998-01-592-2771
NSN 5920-01-426-8517
NSN 5920-01-445-6970
NSN 5950-01-121-4795
NSN 5905-01-125-5030
NSN 5895-00-568-8304
NSN 6220-00-551-7516
NSN 5999-01-383-4826