E444x trigger in connector

[alan.bain]

I'm trying to replace a trigger in on a PSA (it has been squashed by an elephant) E444X series SA.

It looks just like a 1250-0870 but in a variant for a thicker panel.  The SM only suggests E4406-60139 as the replacement cable assy and the old connector unlike the old 1250- series doesn't have a number on it.  Can anyone help identify?

For reference the front of a 1250-0870 fits perfectly and works electrically, but when passed through the chassis plate too little protrudes to fully engage the bayonet of the BNC.

Alan