Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D39779DG found under Diaphragm Valve Fla by Hammel Dahl Inc. The National Stock Number assigned to this part is 4820007845626, 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 D39779DG.