Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 959 004 found under Valve Regulating Fl by Pauli And Griffin Co Inc. The National Stock Number assigned to this part is 4820013415793, 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 959 004.