Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 259089 found under Valve Ball by Huntington Ingalls Incorporated. The National Stock Number assigned to this part is 4820012591319, 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 259089.