Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 171-002-1801 found under Resistor Thermal by Kearfott Corporation. The National Stock Number assigned to this part is 5905001040870, 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 171-002-1801.