Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 7870-016 B13-20 found under Valve Globe by Velan Valve Corporation. The National Stock Number assigned to this part is 4810013208179, and the Federal Supply Class is 4810 Valves Powered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 7870-016 B13-20.