Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AG1604 found under Spring Helical Comp by Rauland Borg Corporation. The National Stock Number assigned to this part is 5360002500121, 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 AG1604.