I couldn’t rule it out, but armament circuits tended to use their own range of connectors, with Stores References in Section 5D, whereas this one has been given a 10A number, for Radio equipment. Also the wire joining the two pins could only carry a limited current, not really beefy enough for an armament circuit. And armament plugs tend to have some method of positively locking in place which this plug doesn’t have.
But anything is possible without further evidence!