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 6240-01-246-7507
NSN 5835-01-316-3255
NSN 6220-00-736-4931
NSN 5996-01-324-1827
NSN 6150-00-053-7226
NSN 7035-01-205-8363
NSN 5935-00-699-0873
NSN 5905-01-574-2620
NSN 6105-00-145-7233
NSN 5935-00-056-3243
NSN 5945-01-634-0588
NSN 5925-01-434-1009