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 5930-00-246-9530
NSN 6105-01-128-7914
NSN 6135-01-535-2307
NSN 5950-01-097-5927
NSN 6240-01-557-9038
NSN 5990-01-310-0884
NSN 6220-01-216-0678
NSN 5960-01-536-9763
NSN 5910-00-554-1422
NSN 5996-01-534-9696
NSN 6610-01-097-5073
NSN 5915-01-281-7553