Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MF504C-318U found under Disk Drive Unit by Mitsubishi Electronics America Inc. The National Stock Number assigned to this part is 7025013902665, and the Federal Supply Class is 7025 Adp Input Output And Storage Devices. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like MF504C-318U.