Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 604-8169282 ITEM NO 3 found under Door Metal Marine Structural by Advanced Structures Corporation. The National Stock Number assigned to this part is 2040015599781, and the Federal Supply Class is 2040 Marine Hardware And Hull Items. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 604-8169282 ITEM NO 3.