Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3SB1100-1AC20 found under Switch Subassembly by Siemens Ltd. The National Stock Number assigned to this part is 5930012993740, 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 3SB1100-1AC20.