Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 542 00018 02 found under Resistor Variable Nonwire Wound by Rycom Instruments. The National Stock Number assigned to this part is 5905005942642, 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 542 00018 02.