Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 50D7 D38X42 found under Tubing Nonmetallic by Airbus Industries. The National Stock Number assigned to this part is 4720144454311, and the Federal Supply Class is 4720 Hose And Flexible Tubing. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 50D7 D38X42.