Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MODEL EFI 1P found under Cock Drain by Ernst Flow Industries Inc. The National Stock Number assigned to this part is 4820015495617, and the Federal Supply Class is 4820 Valves Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like MODEL EFI 1P.