Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 72A239170-1005 found under Relay Assembly by Monogram Aerospace Fasteners Inc. The National Stock Number assigned to this part is 5945010695577, 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 72A239170-1005.