Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 75D421004-2013 found under Capacitor Resistor by Mrl Inc. The National Stock Number assigned to this part is 5915013070867, and the Federal Supply Class is 5915 Filters And Networks. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 75D421004-2013.