External groove/s/
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 6220-01-212-0891
NSN 5855-01-391-8176
NSN 5990-01-395-4194
NSN 5905-00-700-7403
NSN 2925-00-963-0943
NSN 6130-01-364-0339
NSN 6130-00-952-1803
NSN 5999-01-437-6456
NSN 4140-01-643-1434
NSN 5835-00-518-2740
NSN 6145-00-464-0979
NSN 5895-01-136-2705