| 439 / | HD | ELECTRICAL CONNECTORS | 
| 527 | DF | WITH SUPPORTING MEANS FOR COUPLING PART {18} | 
| 544 | DF | .~ Coupling part or mating part extending into panel opening {6} | 
| 545 |  | .~.~ With securing by movement of coupling part in plane of panel {1} | 
| 546 | DF | .~.~.~> Movement about connective axis; e.g., bayonet {3} |