5815-01-186-3662 (SA-2467/MSC-66(V))
5815-01-186-3662 is equivalent to manufacture part number B4003453. It is a line switching unit and is classified under Federal Supply Class 5815 (5815 - Teletype and Facsimile Equipment), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 5815 - Teletype and Facsimile Equipment and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.