Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3TH8022-0BB4 found under Relay Electromagnetic by Siemens Corp. The National Stock Number assigned to this part is 5945012999223, 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 3TH8022-0BB4.