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 6645-01-349-1631
NSN 5895-00-427-9617
NSN 5855-00-145-3307
NSN 5965-01-067-9280
NSN 2925-00-246-3077
NSN 5965-01-204-8505
NSN 5905-00-438-0344
NSN 5960-01-088-6553
NSN 6320-00-456-0836
NSN 6220-00-678-9075
NSN 5835-00-461-9984
NSN 6145-00-402-0414