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 6240-00-566-8371
NSN 5835-00-814-1359
NSN 5855-01-503-6973
NSN 2925-01-496-1068
NSN 7035-01-049-6776
NSN 5935-01-476-2502
NSN 5960-00-962-0522
NSN 6610-01-278-2446
NSN 5895-01-440-5467
NSN 6150-01-462-3109
NSN 6145-01-081-1073
NSN 5985-01-431-8882