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 6150-01-573-6052
NSN 5990-00-542-6838
NSN 5998-01-502-0343
NSN 5925-01-013-9650
NSN 2925-01-052-0636
NSN 6145-00-220-2691
NSN 5960-01-068-9609
NSN 5975-01-323-7166
NSN 5915-01-446-5028
NSN 5930-01-371-2708
NSN 7035-01-024-9511
NSN 5998-00-386-7051