Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D5D1AQ-9 5-16IN found under Impeller Pump Centrifugal by Pentair Pump Group Inc. The National Stock Number assigned to this part is 4320004352720, and the Federal Supply Class is 4320 Power And Hand Pumps. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like D5D1AQ-9 5-16IN.