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 5905-01-444-5960
NSN 5835-01-293-4122
NSN 5975-01-492-6399
NSN 6610-01-212-2969
NSN 6220-00-343-0182
NSN 5999-00-302-7785
NSN 7035-00-572-7086
NSN 5835-01-422-7393
NSN 5975-01-313-5397
NSN 6685-01-026-0111
NSN 6610-01-146-0331
NSN 4140-01-444-6766