An externally threaded fastener bent approximately 180 degrees (3.141 radians) in the shape of the letter u and with both ends threaded.
NSN 5975-00-081-2171
NSN 5895-01-075-7522
NSN 7035-01-088-6415
NSN 5985-01-054-9102
NSN 6130-00-202-4688
NSN 6110-01-021-6712
NSN 5999-01-133-1420
NSN 5895-00-085-4416
NSN 6610-01-633-8931
NSN 6645-01-387-7209
NSN 5999-00-456-4819
NSN 5960-00-004-1959