Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 00664-0199 found under Relay Electromagnetic by Leidos Inc. The National Stock Number assigned to this part is 5945003519677, 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 00664-0199.