Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 820ARR3B88 found under Relay Electromagnet by Tecumseh Products. The National Stock Number assigned to this part is 5945014146454, 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 820ARR3B88.