Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 20097A found under Cooler Lubricating Oil Engine by Niagara Thermal Products Llc. The National Stock Number assigned to this part is 2935004105884, and the Federal Supply Class is 2935 Engine System Cooling Components Aircraft Prime Moving. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 20097A.