Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HDF2-DB-6-A found under Pump Reciprocating by Warren Rupp Houdaille Inc. The National Stock Number assigned to this part is 4320010491388, 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 HDF2-DB-6-A.