Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number G406 8054 ITEM 1021 found under Valve Linear Direct by W F E L Ltd. The National Stock Number assigned to this part is 4820997239844, 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 G406 8054 ITEM 1021.