Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 65528 found under Cooling Tower Liquid by Hussmann Refrigerator Co. The National Stock Number assigned to this part is 4130014463272, and the Federal Supply Class is 4130 Refrigeration And Air Conditioning Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 65528.