Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 14160-NPC4THRU12 found under Valve Assembly Spec by Mcnab Incorporated. The National Stock Number assigned to this part is 4820014000346, 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 14160-NPC4THRU12.