Three internal lumens
NSN 5915-01-204-9482
NSN 6150-00-981-8599
NSN 6110-01-521-3195
NSN 5930-01-117-4270
NSN 5990-01-066-5227
NSN 6220-01-400-0637
NSN 5930-00-932-3135
NSN 6620-00-248-6950
NSN 5915-01-388-2911
NSN 5950-01-450-1856
NSN 6135-01-294-2131
NSN 6610-01-476-6891