Surface treatment: cadmium plated; threaded hole location (1) hole approx 180 deg. From keyway; hole thread size designator: 1/4 -20- unc - 3b; threaded hole qty: 1; securing method: threaded hole; keying facility qty: 1; counterbore location: coupling end; thread provision: unthreaded; distance from center of bore to bottom of keyway: 0.4360" nom.; keyway wd: 0.187" min., 0.189" max.; counterbore dep.: 0.594" nom.; counterbore dia.: 0.781" nom.
A mechanical item used to connect a shaft and the mating member of a flexible or rigid coupling.
Classification: Shaft couplings, except universal joints
NSN 6620-00-946-2677
NSN 5960-00-870-2654
NSN 6150-01-208-9648
NSN 6610-01-232-4802
NSN 6220-01-608-3613
NSN 5895-01-359-6614
NSN 5985-01-463-9112
NSN 5998-01-352-1346
NSN 5895-00-825-3099
NSN 5985-01-370-6754
NSN 5950-00-378-9959
NSN 5910-01-605-3393