An externally threaded fastener bent approximately 180 degrees (3.141 radians) in the shape of the letter u and with both ends threaded.
NSN 5915-01-400-6125
NSN 2925-00-017-9807
NSN 5895-00-733-5748
NSN 6650-00-349-8732
NSN 6610-01-629-4140
NSN 6150-00-850-7316
NSN 6645-01-312-3558
NSN 5960-00-518-4704
NSN 6685-00-052-1865
NSN 6135-00-877-1659
NSN 5985-00-038-5870
NSN 5935-00-811-5947