Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number M3103 PART 417-6SS5-.106 found under Valve Check by Goodrich Corporation. The National Stock Number assigned to this part is 4820011620064, 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 M3103 PART 417-6SS5-.106.