Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number E1966 found under Ring Bearing Pump by Clyde Pumps Ltd. The National Stock Number assigned to this part is 4320004205291, 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 E1966.