5930-01-539-4420 (FS-200F-2-BZ-BZ-3.00-10.0-150#)
5930-01-539-4420 is equivalent to manufacture part number 601721. It is a flow switch and is classified under Federal Supply Class 5930 (5930 - Switches), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 5930 - Switches and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.