Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B17-004-1LEG13 found under Anode Corrosion Pre by Gea Bloksma B V. The National Stock Number assigned to this part is 5342177104611, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like B17-004-1LEG13.