Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SM0-12G PIECE 7 found under Seat Valve by Prince Valve Inc. The National Stock Number assigned to this part is 4820012322438, 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 SM0-12G PIECE 7.