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 6220-00-984-7767
NSN 5965-01-117-2566
NSN 5925-00-051-2003
NSN 4140-01-484-9753
NSN 5835-01-282-6089
NSN 5920-01-023-0040
NSN 6145-01-363-0838
NSN 5835-01-131-2027
NSN 6645-00-892-1605
NSN 5975-00-526-4701
NSN 5910-00-181-5882
NSN 5895-01-461-2972