An externally threaded fastener bent approximately 180 degrees (3.141 radians) in the shape of the letter u and with both ends threaded.
NSN 5975-00-636-4910
NSN 6220-01-328-6574
NSN 6150-01-424-1530
NSN 5855-01-343-2933
NSN 5999-00-770-8112
NSN 5835-01-297-1909
NSN 5950-01-272-8940
NSN 5985-01-381-1172
NSN 5950-00-082-0615
NSN 6220-01-076-7851
NSN 6610-01-084-4488
NSN 5975-01-575-5882