Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PAC2K16AD found under Cooler Air Evaporative by Port A Cool L L C. The National Stock Number assigned to this part is 4120014490337, and the Federal Supply Class is 4120 Air Conditioning Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like PAC2K16AD.