Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2399604.00A found under Valve Check by Gali Corporation. The National Stock Number assigned to this part is 4820145543070, 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 2399604.00A.