Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number H1-05-6MP found under Valve Vacuum Breaki by Parker Hannifin Ltd. The National Stock Number assigned to this part is 4820007352506, 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 H1-05-6MP.