An externally threaded fastener bent approximately 180 degrees (3.141 radians) in the shape of the letter u and with both ends threaded.
NSN 5930-01-460-8517
NSN 6110-01-154-3066
NSN 5915-00-317-1893
NSN 6620-01-026-7371
NSN 5925-00-929-1719
NSN 5905-01-219-2928
NSN 6685-01-202-2984
NSN 5965-01-550-5587
NSN 6105-01-425-1451
NSN 2925-00-769-3293
NSN 5895-00-938-3323
NSN 6650-01-579-7240