Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3165P found under Valve Vent by Cold Llc. The National Stock Number assigned to this part is 4820012877804, 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 3165P.