An externally threaded fastener bent approximately 180 degrees (3.141 radians) in the shape of the letter u and with both ends threaded.
NSN 6320-01-215-2284
NSN 5975-00-269-8391
NSN 5895-01-367-1502
NSN 5835-01-272-4087
NSN 6135-00-170-8819
NSN 5945-01-191-1704
NSN 6240-01-327-3239
NSN 5990-01-516-9665
NSN 6110-00-596-9124
NSN 7035-01-121-5905
NSN 5905-01-355-1418
NSN 5945-01-469-1903