Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3D1-1YY1N found under Switch Subassembly by Honeywell Aerospace. The National Stock Number assigned to this part is 5930010786966, 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 3D1-1YY1N.