Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 873-0001 found under Relay Electromagnetic by Northern Telecom Systems Corp. The National Stock Number assigned to this part is 5945002590886, 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 873-0001.