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 2925-00-845-1480
NSN 6110-01-285-4516
NSN 6650-01-010-4204
NSN 5930-01-084-2384
NSN 6650-01-240-2334
NSN 5965-00-963-1796
NSN 5999-00-189-8191
NSN 5910-01-178-2548
NSN 6105-00-081-9090
NSN 6220-01-271-5007
NSN 6645-01-436-4542
NSN 6110-01-461-2631