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 5999-01-280-0846
NSN 6610-01-072-6768
NSN 5975-00-833-7701
NSN 6650-00-665-3658
NSN 6110-00-948-3204
NSN 5996-01-360-5635
NSN 5999-00-992-4902
NSN 5935-00-093-5024
NSN 7035-00-631-3782
NSN 5905-01-501-6363
NSN 6130-00-867-1431
NSN 6150-01-121-7893