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 5935-01-100-1089
NSN 5975-01-119-4382
NSN 6145-00-060-9097
NSN 5975-01-627-8512
NSN 5960-01-356-4429
NSN 5998-00-187-2783
NSN 5975-01-427-3521
NSN 5910-01-627-1595
NSN 6220-01-580-2420
NSN 6150-00-456-0775
NSN 5910-01-352-3624
NSN 6105-01-641-1286