Two parts mounted on common axis so as to permit a relative rotation between the parts. One part has a round or oval opening and the other is u-shaped and has a pin or bolt across the open legs.
NSN 6650-01-623-1386
NSN 5905-00-950-6509
NSN 5965-01-545-9609
NSN 5855-01-534-7940
NSN 5998-01-128-5987
NSN 6320-01-382-9676
NSN 5835-00-083-6557
NSN 5950-01-401-5321
NSN 6220-01-634-0660
NSN 6150-01-601-1985
NSN 5950-01-313-7074
NSN 6135-00-175-7132