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 5945-00-459-7392
NSN 6145-01-649-8002
NSN 4140-00-825-7506
NSN 6130-01-184-3987
NSN 5985-01-164-4431
NSN 5915-00-774-3716
NSN 6320-01-543-1194
NSN 6610-00-614-7943
NSN 5920-01-442-8734
NSN 6240-01-460-8534
NSN 6135-01-531-1413
NSN 6645-01-379-7725