Lubricating ball indents
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 6645-00-246-4934
NSN 5960-01-384-4603
NSN 6320-01-276-4739
NSN 5990-01-607-3528
NSN 5920-00-988-0869
NSN 5999-00-782-1188
NSN 5998-00-917-8411
NSN 5965-01-513-7758
NSN 5855-01-424-2769
NSN 5930-00-071-5896
NSN 5996-00-798-2449
NSN 5895-00-472-9829