An externally threaded fastener bent approximately 180 degrees (3.141 radians) in the shape of the letter u and with both ends threaded.
NSN 5950-01-418-4809
NSN 6105-00-540-5616
NSN 4140-00-353-5757
NSN 5925-00-752-8292
NSN 5965-00-548-9656
NSN 5990-00-890-3822
NSN 5835-00-466-8544
NSN 4140-00-287-9199
NSN 5930-01-358-6292
NSN 5999-01-307-5549
NSN 5920-01-634-0250
NSN 5999-00-259-5011