Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number C3-1077 PART 33N32SA found under Piston Valve by Magnatrol Valve Corporation. The National Stock Number assigned to this part is 4820012757032, 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 C3-1077 PART 33N32SA.