4710-01-209-4091 (NAS357-80-463)
NSN 4710-01-209-4091 (NIIN 01-209-4091) is a metallic tube in Federal Supply Class 4710, Pipe, Tube And Rigid Tubing — a straight, hollow product, welded or seamless, of round, square, or any other cross section and continuous periphery. Manufacturer part number NAS357-80-463 (National Aerospace Standards, CAGE 80205).
NIIN assigned May 1985; DEMIL A (none required); export Schedule B 7608.20.0030.