Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B-1VS6 found under Valve Globe by Swagelok Ltd. The National Stock Number assigned to this part is 4820011928031, 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 B-1VS6.