An externally threaded fastener bent approximately 180 degrees (3.141 radians) in the shape of the letter u and with both ends threaded.
NSN 5975-01-557-5692
NSN 6150-01-277-5992
NSN 5999-01-056-2911
NSN 5999-00-639-3447
NSN
NSN 5905-01-108-7445
NSN 6110-01-425-1449
NSN 5985-01-097-7523
NSN 5945-00-459-7392
NSN 6645-01-469-8120
NSN 5930-01-212-9317
NSN 6150-00-515-0764