5680-01-469-4873 (HRP/F35-3.5-0420X0720X0.250)
5680-01-469-4873 is equivalent to manufacture part number 299-947-337,TYI,CL3.5,FR5,GRA,S3. 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.