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 6130-00-396-1118
NSN 4140-01-316-0493
NSN 6240-00-872-3365
NSN 6150-01-570-2798
NSN 6620-01-197-8207
NSN 5999-00-719-9664
NSN 6620-01-212-8089
NSN 5915-01-422-0564
NSN 5925-01-545-0202
NSN 5905-01-570-0582
NSN 5835-01-317-4840
NSN 4140-01-221-9255