An externally threaded fastener bent approximately 180 degrees (3.141 radians) in the shape of the letter u and with both ends threaded.
NSN 5999-01-370-0954
NSN 6610-01-227-1692
NSN 6645-01-413-0515
NSN 2925-01-448-2880
NSN 6145-01-131-4094
NSN 6110-00-147-3149
NSN 5925-00-156-4044
NSN 6135-00-351-8606
NSN 6150-01-210-0997
NSN 5920-01-464-3105
NSN 5990-00-524-2293
NSN 5895-00-466-3100