Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number DB-0159-1 found under Heat Interchanger Refrigerant by Doucette Industries Inc. The National Stock Number assigned to this part is 4130012554788, 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 DB-0159-1.