Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number M5RS-A found under Relay Electromagnetic by Mcnab Incorporated. The National Stock Number assigned to this part is 5945004914819, 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 M5RS-A.