Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number Y 523 0060 A047 found under Valve Regulating Fluid Pressure by Bae Systems Marine Limited. The National Stock Number assigned to this part is 4820009355430, 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 Y 523 0060 A047.