Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 146 00500 found under Valve Bleeder Hydra by Parker Hannifin Ltd. The National Stock Number assigned to this part is 4820014824401, 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 146 00500.