Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number C-7000 found under Valve Ball by Watts Regulator Co. The National Stock Number assigned to this part is 4820013693919, 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 C-7000.