An externally threaded fastener bent approximately 180 degrees (3.141 radians) in the shape of the letter u and with both ends threaded.
NSN 6150-01-187-8907
NSN 5905-01-065-0696
NSN 6105-01-343-2217
NSN 6320-01-209-0952
NSN 5930-01-418-9198
NSN 5996-01-533-3219
NSN 2925-01-521-0600
NSN 5855-01-096-9294
NSN 5996-01-606-2421
NSN 6240-01-525-6585
NSN 5996-00-725-2701
NSN 5835-00-064-5312