Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4CR-4-628 found under Relay Electromagnetic by Sensata Technologies Inc. The National Stock Number assigned to this part is 5945010335540, 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 4CR-4-628.