Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number TEC 1210-3A found under Overcurrent Relay by South Bay Redox Medical Supplies. The National Stock Number assigned to this part is 5945013209156, 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 TEC 1210-3A.