An externally threaded fastener bent approximately 180 degrees (3.141 radians) in the shape of the letter u and with both ends threaded.
NSN 5998-01-608-1546
NSN 6240-01-218-5187
NSN 5985-01-513-0398
NSN 5925-01-069-3443
NSN 5910-01-188-5793
NSN 5910-00-116-9344
NSN 5950-01-421-4138
NSN 5950-01-558-4072
NSN 6620-00-485-4136
NSN 6110-01-463-8392
NSN 5835-01-279-2580
NSN 6620-00-643-1402