Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number P-519604 found under Spring Flat by Illinois Tool Works Inc. The National Stock Number assigned to this part is 5360015317658, 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 P-519604.