Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number EF040045 found under by Ip Systemes. The National Stock Number assigned to this part is 5980014828520, 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 EF040045.