Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RNC90Y66R500AP found under Resistor Fixed Wire Wound by Vishay Foil Resistors Vishay. The National Stock Number assigned to this part is 5905016657488, 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 RNC90Y66R500AP.