4710-00-342-1773 (172-48831-311)
NSN 4710-00-342-1773 (NIIN 00-342-1773) is a metal tube assembly in Federal Supply Class 4710, Pipe, Tube And Rigid Tubing — a length of tubing, straight, or prebent to a predetermined angle, with added component(s) that forms an end connection on one or both ends. Manufacturer part number 172-48831-311 (The Boeing Company, CAGE 43999).
NIIN assigned January 1963; DEMIL A (none required); export Schedule B 8302.49.4500.