An externally threaded fastener bent approximately 180 degrees (3.141 radians) in the shape of the letter u and with both ends threaded.
NSN 5935-01-513-9368
NSN 5960-01-553-4557
NSN 7035-01-517-1713
NSN 6135-00-962-4111
NSN 6650-01-154-1870
NSN 6130-00-491-5758
NSN 5925-01-387-6666
NSN 5835-01-208-8800
NSN 5895-01-277-4850
NSN 6610-00-483-6239
NSN 6320-00-937-5625
NSN 5985-00-056-4744