Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number T1B1NW1-4IN found under Valve Globe by Herose Gmbh Armaturen Und Metalle. The National Stock Number assigned to this part is 4820121359067, 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 T1B1NW1-4IN.