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 6320-01-331-6947
NSN 6650-01-368-8345
NSN 5960-00-788-8422
NSN 6650-01-250-1244
NSN 5930-01-518-4257
NSN 6685-00-106-9654
NSN 5998-00-206-6613
NSN 6620-00-854-5024
NSN 6685-00-276-9889
NSN 5975-01-532-1432
NSN 6150-00-793-7831
NSN 6150-00-264-0735