Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 630577 3X4-8 7.75 3600RPM 40CF found under Pump Unit Centrifugal by A W Chesterton Company. The National Stock Number assigned to this part is 4320014803708, 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 630577 3X4-8 7.75 3600RPM 40CF.