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 5915-01-513-6786
NSN 5930-01-332-1324
NSN 6610-01-461-0691
NSN 6320-01-422-1212
NSN 5915-00-427-6454
NSN 5945-01-595-6686
NSN 6645-01-383-8139
NSN 5998-01-250-2793
NSN 5975-01-600-7435
NSN 2925-00-373-8837
NSN 5960-01-086-9650
NSN 6220-01-190-3743