Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 0B4VL2F found under Diaphragm Valve Fla by Smith Meter Inc. The National Stock Number assigned to this part is 4820007355882, 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 0B4VL2F.