| 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} | 
| 560 |  | .~.~ Coupling part secured to panel by stressing beyond elastic limit {1} | 
| 561 | DF | .~.~.~> By stressing panel beyond elastic limit |