Three internal lumens
NSN 5915-01-303-6641
NSN 6645-01-462-2101
NSN 6320-00-937-5625
NSN 6150-01-634-0575
NSN 6110-01-598-5736
NSN 6130-00-007-5992
NSN 4140-01-568-7240
NSN 5945-01-495-0509
NSN 5965-00-543-1837
NSN 5920-00-584-4592
NSN 5960-01-195-6905
NSN 6130-01-296-9766