Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 345-012-9003 found under Fuse Cartridge by B E Aerospace Consumables Management. The National Stock Number assigned to this part is 5920005774716, and the Federal Supply Class is 5920 Fuses Arresters Absorbers And Protector. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 345-012-9003.