Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number FS41 found under Spring Helical Extension by Dacor Corp. The National Stock Number assigned to this part is 5360012706594, 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 FS41.