Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number E04-LR4-D09-312 found under Relay Thermal by Flowserve Corporation. The National Stock Number assigned to this part is 5945013000353, 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 E04-LR4-D09-312.