Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MPF 1504W 3 LL M 09 3 T T L found under Valve Cross by Flow Intl Corp. The National Stock Number assigned to this part is 4820016091075, 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 MPF 1504W 3 LL M 09 3 T T L.