Universal MATE-N-LOK plug or cap housing strain reliefs and cap housing adaptors. The cap housing adaptors secure the cap housing strain reliefs to the housings to prevent the strain relief halves from “drawing in” when the screws are being torqued down to clamp the cable.
The material for these MATE-N-LOK Strain Relief's is a UL 94V-2 rated Nylon, (for UL 90V-0 rated Nylon see stock number 302-0120 typical).

Strain Reliefs and Cap Housing Adapters must be ordered in pairs

5.0 mm Power Key Connectors are for power circuits of home appliances, especially targeting gas appliances. The connector features four kinds of keying per housing. Only color-coding of housings limited the efficiency of blind mating where you could not see connectors. However, the new keying mechanism not only improves assembly efficiency but also helps prevent mismating. Part numbers involved can be reduced so that purchasing and stock level control can be made simpler.

TE Connectivity Universal MATE-N-LOK™ Range