Two u-shaped parts mounted on a common axis so as to permit relative rotation between the parts. The u-shaped parts have a pin or a bolt across the open legs.
NSN 6220-01-058-1140
NSN 5935-00-975-0972
NSN 2925-01-239-6044
NSN 6220-01-242-9901
NSN 6135-01-495-0933
NSN 6150-01-128-4487
NSN 5945-00-206-2774
NSN 7035-00-535-8109
NSN 6110-01-495-7689
NSN 5990-01-510-4699
NSN 5945-00-837-4043
NSN 4140-01-533-5332