Don't remember what it's called. But it is a very common type of connector used in military and aircraft installations.
There is an outfit in Chicago called "Electronic Connectors Inc", about a block away from Midway airport. Interesting place. They know about virtually every type of connector ever made, but have absolutely no connectors in stock. They do, however, have the components in stock to build well over half of all the connectors ever imagined. If you talk to them nice, and send them a better picture, they can help you identify the connector.
One of the things they're going to ask you for is the part number on the connector. You may not have found it yet, but there is almost always a part number on the body of such connectors.
The part number probably only identifies the body of the connector. There can be many many different numbers and type of pins inserted into the body, and these affect the complete part number.
Might also go to your local aircraft electronics repair station, if you have one. They deal with similar plugs every day.
One problem with EC is that they have a hefty minimum order. So try and get a part number from them, then google the part number to find a source for only one or two, or whatever you need. Digikey, Mouser, Newark Electronics, etc. can probably help.
Don't forget the original manufacturer of the equipment, if you can identify it.
And that is the male plug. You want a female plug.