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 6320-01-198-4024
NSN 7035-01-179-4857
NSN 6145-00-493-4073
NSN 5985-01-443-3141
NSN 5950-01-190-3481
NSN 5996-00-269-2655
NSN 6620-00-134-1593
NSN 6105-01-392-5036
NSN 6145-01-424-1351
NSN 5998-01-206-0152
NSN 5985-01-548-5870
NSN 6320-00-809-5744