Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number DM120B60A found under Diaphragm Valve Flat by Singer Valve Inc. The National Stock Number assigned to this part is 4820000979870, 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 DM120B60A.