An externally threaded fastener bent approximately 180 degrees (3.141 radians) in the shape of the letter u and with both ends threaded.
NSN 6130-01-484-9310
NSN 6130-01-204-4542
NSN 5960-01-506-7039
NSN 6145-00-262-3345
NSN 5975-01-135-5598
NSN 6240-01-545-3608
NSN 5998-01-131-6399
NSN 4140-01-167-7574
NSN 6145-01-653-8492
NSN 6105-00-824-4118
NSN 5915-01-168-3887
NSN 6320-01-078-8257