Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RU67B1U found under Heat Sink Electrical Electronic by Cts Electronic Components. The National Stock Number assigned to this part is 5999005409182, and the Federal Supply Class is 5999 Miscellaneous Electrical And Electronic Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like RU67B1U.