4710-01-290-3554 (70307-23008-059)
NSN 4710-01-290-3554 (NIIN 01-290-3554) 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 70307-23008-059 (Sikorsky Aircraft Corporation, CAGE 78286).
NIIN assigned December 1988; DEMIL A (none required); export Schedule B 8302.49.4500.