Description
Fuze M7A1 is used to activate the M3 antipersonnel mine.
Fuze M7A1 is of the combination type, with a three-pronged pressure firing device at the top and a pull wire release-pin ring at the side. The fuze body houses a spring loaded firing pin and a cocking mechanism. The fuze base contains a primer and a crimped-on non-electric blasting cap. The firing mechanism consists of a cylindrical metal case containing a trigger pin, a release pin, and a firing pin, each fitted with a coil spring. Two safety pins render the fuze safe during shipment and handling. A cotter pin passes through the end of the release pin and bears against the body of the fuze. A second pin, called the safety firing pin, passes through the end of the firing pin that protrudes above the top of the fuze. The fuze is shipped as a complete assembly, consisting of a firing mechanism and a primped base, with a crimped-on blasting cap. When supplied with the M3 mine, the fuze is isolated, but packed within the same box. Fuzes are also packed for separate issue.
Functioning
No information about functioning.
Hazardous Components
No information about hazardous components.
See Also
Source(s)
TM 43-0001-36, Land Mines (chg 3, 2000)
OP 1664, Volume 2 - US Explosive Ordnance (1947)
