Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3322717 found under Seat Valve by L3 Communications Corp. The National Stock Number assigned to this part is 4820011796728, 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 3322717.