An externally threaded fastener bent approximately 180 degrees (3.141 radians) in the shape of the letter u and with both ends threaded.
NSN 5950-00-880-9988
NSN 6145-01-251-2011
NSN 5950-01-068-6750
NSN 2925-00-872-4474
NSN 5915-00-912-3391
NSN 6240-01-399-4105
NSN 2925-00-478-3742
NSN 5910-00-021-9415
NSN 5999-01-338-8831
NSN 5895-01-571-7505
NSN 6685-00-128-9727
NSN 6610-01-013-8922