4240-01-247-0247 (W-8000BRFK)
4240-01-247-0247 is equivalent to manufacture part number W-8000BRFK. It is a oxygen mask parts kit and is classified under Federal Supply Class 4240 (4240 - Safety and Rescue Equipment), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 4240 - Safety and Rescue Equipment and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.