An externally threaded fastener bent approximately 180 degrees (3.141 radians) in the shape of the letter u and with both ends threaded.
NSN 5945-01-005-0328
NSN 5998-01-254-1881
NSN 5925-01-274-1294
NSN 5950-00-159-8097
NSN 5920-01-603-0985
NSN 5895-01-454-5229
NSN 6135-01-653-6113
NSN 5935-00-833-8652
NSN 5998-00-415-4759
NSN 5935-01-016-5151
NSN 6320-00-500-4172
NSN 5855-01-357-7907