Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 86D172-18REV5ASSY1B found under Resistor Fixed Wire by Westinghouse Electric Corp. The National Stock Number assigned to this part is 5905002801132, 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 86D172-18REV5ASSY1B.