Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5001B found under Fuseholder Block by Fincantieri Spa. The National Stock Number assigned to this part is 5920015620713, 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 5001B.