Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S1440-5179 found under Spring Helical Compression by Airbus Industries. The National Stock Number assigned to this part is 5360006631658, and the Federal Supply Class is 5360 Coil Flat Leaf And Wire Springs. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like S1440-5179.