Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number G303476 found under Valve Vent by Stewartwarner Corporation. The National Stock Number assigned to this part is 4820000691972, 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 G303476.