Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MH423678-8 found under Relay Thermal by Honeywell Aerospace. The National Stock Number assigned to this part is 5945005107472, 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 MH423678-8.