An externally threaded fastener bent approximately 180 degrees (3.141 radians) in the shape of the letter u and with both ends threaded.
NSN 6685-01-383-4980
NSN 5990-00-321-8459
NSN 5855-01-175-2465
NSN 5895-01-525-3809
NSN 6130-00-248-3259
NSN 5965-01-037-2277
NSN 5996-01-130-6504
NSN 6610-01-003-9058
NSN 5855-01-570-3195
NSN 5996-01-568-6689
NSN 6620-01-230-0197
NSN 4140-00-413-0877