Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HS-05 found under Parts Kit Axial Piston Pump by Hynautic Inc. The National Stock Number assigned to this part is 4320012824187, 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 HS-05.