Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SS412 found under Spring Helical Compression by Ellis And Watts International Llc. The National Stock Number assigned to this part is 5360004103130, 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 SS412.