Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 668-CRM 1 found under Relay Control Modul by Morrow Paul Co. The National Stock Number assigned to this part is 5945012083472, 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 668-CRM 1.