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 6685-01-010-9785
NSN 5996-01-191-8758
NSN 5998-00-860-3575
NSN 6650-01-537-0443
NSN 5999-00-560-0097
NSN 7035-01-655-8893
NSN 5975-00-541-8531
NSN 5999-00-178-0906
NSN 6145-01-605-4175
NSN 5920-01-439-7014
NSN 6620-00-959-6614
NSN 5915-01-260-9432