Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number TK0442 found under Resistor Variable N by Reon Resistor Corp. The National Stock Number assigned to this part is 5905009377220, 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 TK0442.