5640-01-544-7969 (SRX-PC-96-12-70-90SREL)
5640-01-544-7969 is equivalent to manufacture part number ASTM. It is a thermal insulation sleeving and is classified under Federal Supply Class 5640 (5640 - Wallboard and Insulation), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 5640 - Wallboard and Insulation and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.