An externally threaded fastener bent approximately 180 degrees (3.141 radians) in the shape of the letter u and with both ends threaded.
NSN 5930-01-561-6506
NSN 6145-01-492-5098
NSN 5996-00-252-6722
NSN 5930-01-005-1746
NSN 5996-00-358-6257
NSN 4140-01-060-1438
NSN 6645-01-346-4505
NSN 7035-01-287-9817
NSN 5910-01-267-1047
NSN 5965-01-168-8180
NSN 2925-01-194-9737
NSN 5895-00-841-1745