Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SR1F1A2 found under Relay Electromagnetic by Johnson Controls Inc. The National Stock Number assigned to this part is 5945007999157, 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 SR1F1A2.