Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HVR0009 found under Valve Safety Relief by Trump Ted Co The. The National Stock Number assigned to this part is 4820011573170, 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 HVR0009.