Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5-2903-103498 found under Valve Assembly Glo by Saacke Gmbh. The National Stock Number assigned to this part is 4820123395506, 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 5-2903-103498.