Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 03250-0219 found under Valve Check by Parker Hannifin Corporation. The National Stock Number assigned to this part is 4820006184845, 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 03250-0219.