An externally threaded fastener bent approximately 180 degrees (3.141 radians) in the shape of the letter u and with both ends threaded.
NSN 6320-01-370-5222
NSN 5985-00-674-7229
NSN 6220-01-042-8017
NSN 5998-00-114-0575
NSN 5855-00-494-9581
NSN 5950-01-595-0207
NSN 5910-00-858-8249
NSN 5975-00-155-4181
NSN 5935-01-226-0428
NSN 6610-00-540-8911
NSN 5855-01-275-8080
NSN 5985-01-518-8282