An externally threaded fastener bent approximately 180 degrees (3.141 radians) in the shape of the letter u and with both ends threaded.
NSN 6240-01-373-1439
NSN 5920-01-572-1092
NSN 5920-00-099-0737
NSN 5999-01-369-0795
NSN 2925-00-017-0526
NSN 5999-00-966-7672
NSN 5895-01-251-9535
NSN 5975-01-310-5015
NSN 5835-00-572-7445
NSN 5985-01-086-0250
NSN 6150-00-818-4787
NSN 6150-00-478-0555