Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number G404518-4 found under Light Emitting Diod by Raytheon Technical Services Company. The National Stock Number assigned to this part is 5980013733121, and the Federal Supply Class is 5980 Optoelectrical Devices And Associated Hardware. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like G404518-4.