Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number VS2-1001 found under by Northway Products Inc. The National Stock Number assigned to this part is 4820012704894, 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 VS2-1001.