Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 99C51330-7 found under Valve Assembly by Mitsubishi Heavy Industries Ltd. The National Stock Number assigned to this part is 4820016542403, 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 99C51330-7.