Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number TPC997-4417 found under Sleeve Shaft Pump by Tpc. The National Stock Number assigned to this part is 4320009974417, 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 TPC997-4417.