Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number EY-D01032B found under Valve Hand Bypass by Nihon Seiki Co Ltd. The National Stock Number assigned to this part is 4820014320190, 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 EY-D01032B.