Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AAF43D2474-6-254 found under Hose Assembly Nonmetallic by Boeing Aircraft. The National Stock Number assigned to this part is 4720004213803, 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 AAF43D2474-6-254.