An externally threaded fastener bent approximately 180 degrees (3.141 radians) in the shape of the letter u and with both ends threaded.
NSN 6135-01-116-3385
NSN 5920-01-321-9402
NSN 6685-01-313-9509
NSN 5895-00-144-0250
NSN 5960-01-442-6234
NSN 5895-00-137-6368
NSN 6685-00-993-5548
NSN 7035-01-155-0153
NSN 5910-00-424-3051
NSN 5910-01-244-0762
NSN 2925-00-328-2018
NSN 6645-01-147-6577