The M607 fuze incorporates a belleville springloaded firing pin, a tilt rod, a pressure ring, and a frangible plastic collar. The base is threaded to fit the mine and is shipped with a closure assembly screwed in place for protection. Fuze wrench M26 fits the closure assembly. A safety band and strap prevents movement of the fuze pressure ring. This is secured with a cotter pin.
Fuze M607 is a pressure type fuze that can also be activated by side thrust loads, when so adapted, by the addition of an extension rod. The plastic collar within the fuze is designed to shatter under vertical loading of the pressure ring, or from side load effects on the tilt rod. A 290 pound vertical load with 1/8-inch travel, or a horizontal force on the tilt rod greater than 3.75 pounds acting through approximately 20 degrees, is required to shatter the plastic collar. Once the collar is broken, continuing force from either source will be transmitted through the tilt rod to the belleville spring, which will drive the firing pin into the M46 detonator. This, in turn, will function the mine.