Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 28729GE found under Stem Fluid Valve by Parts Unlimited Inc. The National Stock Number assigned to this part is 4820013318831, 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 28729GE.