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 5935-00-942-0320
NSN 6220-00-854-2532
NSN 5945-01-185-9379
NSN 7035-01-131-1168
NSN 5835-01-490-9751
NSN 5935-00-570-0329
NSN 6685-01-608-4348
NSN 5895-00-072-7709
NSN 6105-01-072-0481
NSN 6685-01-537-2491
NSN 4140-01-264-4952
NSN 5975-01-055-2290