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 5998-01-180-9723
NSN 6150-01-646-3321
NSN 5930-01-140-2285
NSN 5915-00-588-6618
NSN 5996-01-605-6517
NSN 6145-00-762-8286
NSN 6150-01-145-5156
NSN 5975-01-549-3561
NSN 5935-01-440-9317
NSN 5960-01-414-1677
NSN 5975-00-577-0168
NSN 5835-00-341-5441