5970-00-913-4221 (80-0120-3901-4)
5970-00-913-4221 is equivalent to manufacture part number 421. It is a electrical insulation tape and is classified under Federal Supply Class 5970 (5970 - Electrical Insulators), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 5970 - Electrical Insulators and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.