An externally threaded fastener bent approximately 180 degrees (3.141 radians) in the shape of the letter u and with both ends threaded.
NSN 6150-01-365-1600
NSN 5910-00-871-5652
NSN 6610-00-042-8461
NSN 4140-00-846-4786
NSN 6220-00-858-2456
NSN 6685-01-322-8516
NSN 6685-01-442-7212
NSN 5945-01-487-4127
NSN 5905-01-322-7915
NSN 5925-01-202-0131
NSN 6220-01-573-4361
NSN 6150-01-071-0219