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 6145-01-188-5856
NSN 5975-01-368-4718
NSN 6240-01-351-4516
NSN 5999-00-240-4972
NSN 4140-01-569-5396
NSN 5960-01-181-2143
NSN 5998-01-657-0230
NSN 5905-01-256-1820
NSN 6110-01-364-4590
NSN 6650-01-129-6087
NSN 5905-00-844-4228
NSN 6150-00-311-1336