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 6240-01-161-5007
NSN 5895-01-452-6232
NSN 6220-01-549-9584
NSN 5965-01-422-3232
NSN 5930-01-413-5009
NSN 5950-01-056-1605
NSN 5925-01-350-4295
NSN 6645-01-184-9142
NSN 6620-01-268-9693
NSN 6130-00-579-9933
NSN 5945-01-214-4136
NSN 5835-01-545-6467