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 6620-00-718-6525
NSN 5996-00-136-6730
NSN 6650-01-330-6740
NSN 5835-01-394-7589
NSN 6130-01-068-2156
NSN 6685-00-269-6444
NSN 6320-00-925-0558
NSN 5985-00-231-6076
NSN 6320-00-025-9910
NSN 5920-01-094-4327
NSN 6610-01-445-6362
NSN 5965-01-342-2865