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 6685-01-522-3526
NSN 5998-01-316-9982
NSN 5835-01-363-4527
NSN 6650-00-842-5463
NSN 5990-01-377-7762
NSN 5945-00-401-1188
NSN 5920-01-634-0250
NSN 5996-00-810-0197
NSN 6685-01-199-5911
NSN 6685-01-262-6445
NSN 5915-00-381-9197
NSN 5975-00-497-5431