Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MT4-4401 found under Tray Mounting Electronic Equipme by Emteq Inc. The National Stock Number assigned to this part is 5975015751900, and the Federal Supply Class is 5975 Electrical Hardware And Supplies. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like MT4-4401.