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 5910-00-983-0808
NSN 6650-01-618-5317
NSN 5999-01-488-4029
NSN 6320-01-419-6416
NSN 5985-00-182-7353
NSN 5905-01-220-8662
NSN 6130-00-378-9889
NSN 6610-00-845-1070
NSN 7035-01-468-6532
NSN 6105-01-610-6949
NSN 5910-00-298-1833
NSN 5950-00-785-8110