Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1680-99-603 found under Shacke Cable Flyi by Nato Stock Number Assigned By An. The National Stock Number assigned to this part is 1680004522686, and the Federal Supply Class is 1680 Miscellaneous Aircraft Accessories And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 1680-99-603.