Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 109-220PORM1PCT1-4W found under Resistor Fixed Film by C Mac Microcircuits Ltd. The National Stock Number assigned to this part is 5905003283980, and the Federal Supply Class is 5905 Resistors. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 109-220PORM1PCT1-4W.