Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number APO5C13-12 found under Resistor Variable W by Ace Electronics Inc. The National Stock Number assigned to this part is 5905009018389, 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 APO5C13-12.