Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number C5004PC37 found under Diaphragm Actuator Valve Special by Singer Valve Inc. The National Stock Number assigned to this part is 4820007306099, 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 C5004PC37.