Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 720 00 079 found under Valve Ballast by Vacuum Products Inc. The National Stock Number assigned to this part is 4820013152638, 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 720 00 079.