Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number KV51-3-044 found under Valve Linear Direct by Allied Devices Corp. The National Stock Number assigned to this part is 4820014973472, 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 KV51-3-044.