Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 331 117 found under Hose Assembly Nonme by The Boeing Company. The National Stock Number assigned to this part is 4720009666183, 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 331 117.