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 6610-01-480-5014
NSN 5996-00-458-8595
NSN 5990-01-616-9342
NSN 6645-01-127-7879
NSN 6135-01-465-0829
NSN 6130-00-267-9970
NSN 5935-01-284-8362
NSN 5925-00-882-1600
NSN 5975-01-014-6161
NSN 6645-00-930-9356
NSN 2925-00-149-0760
NSN 7035-00-150-2379