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 5990-01-113-0303
NSN 5965-00-033-5928
NSN 5975-01-394-5281
NSN 5960-01-223-6202
NSN 6135-01-437-6409
NSN 4140-01-606-1700
NSN 5905-01-628-0111
NSN 5905-01-031-7332
NSN 2925-00-149-0760
NSN 5915-01-088-6908
NSN 6130-00-708-7543
NSN 5930-00-038-6148