An externally threaded fastener bent approximately 180 degrees (3.141 radians) in the shape of the letter u and with both ends threaded.
NSN 7035-00-703-3535
NSN 5996-01-357-5865
NSN 5999-01-286-8116
NSN 7035-00-150-2379
NSN 6650-01-538-5528
NSN 6220-01-158-5956
NSN 7035-01-648-8510
NSN 5895-01-223-7643
NSN 5985-01-268-7323
NSN 6685-00-281-2840
NSN 5950-00-023-9275
NSN 5935-01-568-3985