Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D44557 FIND 38 found under Gear Helical by Akron Brass Company. The National Stock Number assigned to this part is 3020016207695, and the Federal Supply Class is 3020 Gear Pulley Sprocket And Transmission Chain. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like D44557 FIND 38.