Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1S611647 found under Air Cooler by Isotta Fraschini Motori Spa. The National Stock Number assigned to this part is 2930151225642, and the Federal Supply Class is 2930 Engine Cooling System Components Nonaircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 1S611647.