Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number NF-7054 PC 633 found under Seat Valve by Lowe Charles Co The. The National Stock Number assigned to this part is 4820009764736, 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 NF-7054 PC 633.