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 5945-01-476-9476
NSN 5996-00-839-3270
NSN 7035-00-946-2642
NSN 6150-01-526-8609
NSN 4140-01-440-7683
NSN 5855-00-177-3529
NSN 6650-01-140-4463
NSN 5920-01-264-7796
NSN 6220-01-537-0129
NSN 5915-00-928-8267
NSN 5999-01-354-8285
NSN 5996-01-323-6008