Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number C3F31-3 found under Spring Helical Tors by Bombardier Aerospace. The National Stock Number assigned to this part is 5360006291477, 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 C3F31-3.