Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 193X11581 found under Resistor Variable Nonwire Wound by A R F Products Inc. The National Stock Number assigned to this part is 5905002592806, 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 193X11581.