Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 888997-0556 found under Relay Reed by Litton Systems Inc. The National Stock Number assigned to this part is 5945009083618, 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 888997-0556.