Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R27-FSA3CA40 found under Relay Solid State by Sprecher And Schuh Inc. The National Stock Number assigned to this part is 5945015572751, 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 R27-FSA3CA40.