Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 49DW017 found under Valve Manifold by Rolls Royce Power Engineering Plc. The National Stock Number assigned to this part is 4820011986461, 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 49DW017.