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 4140-00-868-1817
NSN 5855-00-014-5008
NSN 5910-00-792-3174
NSN 5950-00-579-1065
NSN 5930-00-732-0975
NSN 5905-01-355-2411
NSN 5935-00-424-9348
NSN 5920-00-090-8396
NSN 5920-01-524-7151
NSN 5945-01-177-9653
NSN 6130-00-148-1821
NSN 6620-01-106-3553