Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 04055897000301 found under Valve Weighted Cont by Wew Westerwaelder Eisenwerk Gmbh. The National Stock Number assigned to this part is 4820015330134, 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 04055897000301.