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 5975-01-634-0678
NSN 5920-00-043-2647
NSN 5925-00-833-6028
NSN 5998-00-789-4134
NSN 6685-01-198-0875
NSN 7035-01-276-0355
NSN 6110-00-557-8631
NSN 5975-01-162-6221
NSN 6610-01-318-6713
NSN 5996-01-170-9659
NSN 6135-01-295-2708
NSN 6685-01-017-9122