5930-00-138-5164 (N5900039)
5930-00-138-5164 is equivalent to manufacture part number 3100-6-21. It is a thermostatic 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.