Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 474504 found under Spring Helical Comp by Aar Parts Trading Inc. The National Stock Number assigned to this part is 5360013823807, 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 474504.