Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ITL12L 14S found under Parts Kit Check Valve by Parker Hannifin Ltd. The National Stock Number assigned to this part is 4820016673225, 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 ITL12L 14S.