Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 121-0015-14ISSUE4 found under Resistor Variable N by Kearfott Corporation. The National Stock Number assigned to this part is 5905006309777, 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 121-0015-14ISSUE4.