5680-01-428-7004 (TY4 CL1 43.0WX5000L MS573TY4CL1430WX5000L)
5680-01-428-7004 is equivalent to manufacture part number 56567417. It is a structura cellular core material and is classified under Federal Supply Class 5680 (5680 - Miscellaneous Construction Materials), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 5680 - Miscellaneous Construction Materials and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.