4240-01-701-6918 (289-801-240)
4240-01-701-6918 is equivalent to manufacture part number 289-801-240. It is a oxygen mask 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.