Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 106909-3 found under Seat Valve by Specialty And Ball Valve Engineering. The National Stock Number assigned to this part is 4820014522242, 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 106909-3.