A d-shaped part and a u-shaped part mounted on a common axis so as to permit relative rotation between the parts. The u-shaped part has a pin or a bolt across the open legs.
NSN 5990-01-202-7003
NSN 5998-01-391-7195
NSN 6220-01-407-8403
NSN 5920-00-165-0390
NSN 6150-01-222-4135
NSN 4140-00-455-8162
NSN 5835-01-104-5707
NSN 6645-01-172-6838
NSN 6150-00-010-1416
NSN 6130-01-568-9457
NSN 5925-01-490-6296
NSN 5855-00-489-6754