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 6145-01-014-6260
NSN 5965-01-473-0825
NSN 2925-01-484-8556
NSN 2925-01-097-0903
NSN 7035-01-432-1163
NSN 6610-00-365-4454
NSN 5835-00-237-2879
NSN 5999-00-132-5586
NSN 5920-01-629-9639
NSN 6240-01-478-0128
NSN 6650-01-209-6318
NSN 4140-00-908-2363