Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number WB8000-2 found under Cock Poppet Drain by Weba Inc. The National Stock Number assigned to this part is 4820006287678, 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 WB8000-2.