Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number F16-12 found under by Dayton Plastics Inc. The National Stock Number assigned to this part is 4820000420963, 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 F16-12.