An externally threaded fastener bent approximately 180 degrees (3.141 radians) in the shape of the letter u and with both ends threaded.
NSN 5930-01-592-1167
NSN 5915-01-148-1891
NSN 5930-01-521-3777
NSN 5950-01-518-9323
NSN 5855-00-361-0167
NSN 4140-01-372-7632
NSN 6320-01-261-5983
NSN 6650-01-565-0329
NSN 5925-00-566-4169
NSN 5975-01-573-4433
NSN 5925-00-404-9035
NSN 5905-01-227-0946