Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 74D040720-2103 found under Resistor Assembly by Monogram Aerospace Fasteners Inc. The National Stock Number assigned to this part is 5905015302521, and the Federal Supply Class is 5905 Resistors. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 74D040720-2103.