Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 9001 D1A1U found under Switch Subassembly by Schneider Electric Usa Inc. The National Stock Number assigned to this part is 5930013468391, 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 9001 D1A1U.