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 5920-01-620-2543
NSN 6110-01-343-5891
NSN 5930-00-089-3575
NSN 5910-01-224-3656
NSN 6150-00-815-5984
NSN 6150-01-462-0827
NSN 6610-01-290-2627
NSN 6240-00-062-7078
NSN 5905-01-330-3141
NSN 6620-01-484-4153
NSN 6610-01-546-6885
NSN 5985-01-384-6755