Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4039663-0501 found under Filter Assembly Ele by Raytheon Company. The National Stock Number assigned to this part is 5915011081767, and the Federal Supply Class is 5915 Filters And Networks. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 4039663-0501.