Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number WSF2197A1X found under Spring Helical Compression by Dw Hercules Llc. The National Stock Number assigned to this part is 5360005987481, 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 WSF2197A1X.