Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ZEP-B-3 found under Anode Corrosion Preventive by Xchanger Manufacturing Corporation. The National Stock Number assigned to this part is 5342005822012, 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 ZEP-B-3.