4710-01-241-2664 (431 01 53 4214310153)
4710-01-241-2664 is equivalent to manufacture part number 421. It is a metallic tube and is classified under Federal Supply Class 4710 (4710 - Pipe, Tube and Rigid Tubing), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 4710 - Pipe, Tube and Rigid Tubing and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.