Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 440308 found under Hose Assembly Metallic by Raytheon Company. The National Stock Number assigned to this part is 4720004182290, 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 440308.