An externally threaded fastener bent approximately 180 degrees (3.141 radians) in the shape of the letter u and with both ends threaded.
NSN 6105-01-130-2417
NSN 5999-00-825-8447
NSN 2925-00-225-5386
NSN 6220-01-443-3637
NSN 6130-01-653-4570
NSN 5996-01-085-5031
NSN 6105-00-904-3327
NSN 6620-01-622-4980
NSN 6220-01-608-3613
NSN 5920-00-196-3631
NSN 5905-00-143-0943
NSN 5975-00-087-9415