An externally threaded fastener bent approximately 180 degrees (3.141 radians) in the shape of the letter u and with both ends threaded.
NSN 5920-01-123-9854
NSN 5930-00-340-6902
NSN 6220-00-528-7752
NSN 5985-01-312-2393
NSN 5895-00-359-3834
NSN 5855-00-089-3974
NSN 5925-01-605-7767
NSN 6130-01-569-7578
NSN 5999-01-133-9274
NSN 5935-01-201-6472
NSN 5965-01-530-7737
NSN 5945-00-591-3706