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 5950-00-350-6728
NSN 5915-01-227-4573
NSN 6105-01-384-3687
NSN 6320-01-247-0898
NSN 5975-01-249-9120
NSN 5945-01-141-7017
NSN 5985-01-161-3112
NSN 5920-00-501-1075
NSN 5945-01-390-2021
NSN 5930-01-210-1902
NSN 5990-01-269-2111
NSN 5910-00-399-7455