Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4Z3R106 found under Anode Corrosion Preventive by Howden Buffalo Inc. The National Stock Number assigned to this part is 5342003620449, 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 4Z3R106.