Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3312067PC 17 found under Cock Drain by Mechanical Equipment Company Inc. The National Stock Number assigned to this part is 4820013076872, 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 3312067PC 17.