Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 49D52209001 found under Extension Reset Rel by Siemens Energy And Automation Inc. The National Stock Number assigned to this part is 5945001289256, and the Federal Supply Class is 5945 Relays And Solenoids. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 49D52209001.