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 6145-01-154-7183
NSN 6240-01-089-6149
NSN 5915-01-392-3168
NSN 6620-00-269-5168
NSN 5960-01-372-5609
NSN 5975-00-915-3373
NSN 5965-01-484-7925
NSN 6150-01-282-4256
NSN 5855-01-316-6574
NSN 6105-00-427-9615
NSN 4140-00-360-2031
NSN 5930-00-554-1064