Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 52330974 found under Valve Check by Atlas Copco. The National Stock Number assigned to this part is 4820015329739, 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 52330974.