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 6130-00-887-8442
NSN 6620-01-583-8155
NSN 5945-01-632-4578
NSN 4140-01-123-2182
NSN 5965-00-505-2166
NSN 6685-01-502-9028
NSN 6320-01-513-9166
NSN 6645-01-284-1157
NSN 5835-00-491-3834
NSN 6150-01-329-2372
NSN 5990-00-896-8930
NSN 5965-01-578-3522