Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 14390-099-00 found under Valve Safety Relief by Upright Inc. The National Stock Number assigned to this part is 4820012337973, 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 14390-099-00.