Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4047-1438 ITEM 66 found under Switch Subassembly by Huntington Ingalls Incorporated. The National Stock Number assigned to this part is 5930014406584, and the Federal Supply Class is 5930 Switches. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 4047-1438 ITEM 66.