Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MT3-3703 found under Fan Vaneaxial by Emteq Inc. The National Stock Number assigned to this part is 4140016073559, and the Federal Supply Class is 4140 Fans Air Circulators And Blower Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like MT3-3703.