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 5998-00-925-2567
NSN 7035-00-104-7613
NSN 5910-01-100-3390
NSN 6645-00-925-2887
NSN 6105-01-314-6667
NSN 5945-00-107-7334
NSN 6105-01-357-6320
NSN 6135-01-568-9107
NSN 5935-01-109-7521
NSN 4140-01-548-7229
NSN 6150-01-457-6848
NSN 6685-00-227-6750