Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 9ML 401 878-02 found under Resistor Fixed Film by Aero Electronics Systems Inc. The National Stock Number assigned to this part is 5905013601439, 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 9ML 401 878-02.