Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 540 00001 15 found under Resistor Variable N by Rycom Instruments. The National Stock Number assigned to this part is 5905012826035, 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 540 00001 15.