Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 12B010027 found under Flow Divider Dfe052 818Es3w231 2 by Walvoil Spa. The National Stock Number assigned to this part is 4820014952089, 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 12B010027.