Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 49D22125001 found under Switch Interlock by Siemens Energy And Automation Inc. The National Stock Number assigned to this part is 5930013555100, 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 49D22125001.