Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 523668 found under Spring Contact by Duffnorton Co Inc. The National Stock Number assigned to this part is 5360008017025, 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 523668.