Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MB15DW1-08 2.00IN found under Stop Valve Disk by Gulf Valve Co. The National Stock Number assigned to this part is 4820014361036, 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 MB15DW1-08 2.00IN.