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 5996-01-015-4142
NSN 5855-01-428-9456
NSN 6240-00-500-0524
NSN 5965-00-892-3665
NSN 5935-01-071-4640
NSN 6105-01-507-1467
NSN 6150-00-726-6885
NSN 5925-01-345-6877
NSN 5895-00-302-0990
NSN 5915-00-707-2297
NSN 6685-00-149-3624
NSN 6610-01-425-6960