An externally threaded fastener bent approximately 180 degrees (3.141 radians) in the shape of the letter u and with both ends threaded.
NSN 5920-00-300-1843
NSN 5835-01-174-7700
NSN 6150-01-014-0370
NSN 5935-00-186-7760
NSN 6105-01-393-9069
NSN 5998-01-333-7147
NSN 5920-01-076-4705
NSN 7035-00-320-5644
NSN 6150-01-545-2045
NSN 5999-00-818-3060
NSN 5895-00-275-5106
NSN 5895-01-570-3590