An externally threaded fastener bent approximately 180 degrees (3.141 radians) in the shape of the letter u and with both ends threaded.
NSN 5960-01-236-3883
NSN 6685-01-123-1922
NSN 6145-01-211-1592
NSN 5990-00-308-2538
NSN 5855-00-548-4742
NSN 5925-01-393-8799
NSN 5996-01-168-2746
NSN 5945-01-036-1962
NSN 5945-01-115-5845
NSN 5945-01-634-0588
NSN 7035-01-281-3642
NSN 5855-01-585-8620