Industrial MS39021-2 Speedometer For Military Vehicles

The MS39021-2 Black Humvee speedometer is a MIL-DTL-10215K mechanical, cable-driven instrument designed for rugged military dashboards in vehicles such as the Humvee M998, M35, M939, and other M-Series platforms. It provides 0–60 mph speed indication and an odometer ranging from 0.0 to 99,999.9 miles, with a needle-pointer display and external illumination for daytime readability, and the design operates without electronic speed sensors. The drive uses a 5/8-18 UNF thread and a square shaft 0.105–0.108 in, with a bezel diameter of 3.735–3.797 in, case diameter 3.375 in (nominal), and a maximum depth of 2.312 in, mounted by clamp. The window is glass, the gauge face is black, and the unit includes the odometer (trip odometer is not included). It is compatible with standard military drive cables and transmission drive systems and carries NSN 6680-00-933-3599. Alternate part numbers include M10215-1A, 808913, 8376375, 503C, 1582373, 1581256, and 640131. Widely used for repair, restoration, or replacement of speed indicators in tactical vehicles, armored vehicles, and other M-Series applications.