| Part No. | Use | |||
| Plug No. 235a | Plug with integral lamp. Used on 50 volt supplies
to provide power to portable small tools, such as soldering irons. Takes a Lamp No. 2 (voltage) |
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| Plug No. 316 | Three way plug used on most late GPO switchboards. |  |
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| Plug No. 404 | Bakelite covered, large, brass plug, used before the introduction of the Plug 420. |
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| Plug No. 420 | Plastic covered smaller version of the Plug 420. Universally used by the BPO. |
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| Plug No. 430 | Left hand latch - 4 way - used on handset cords |  |
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| Plug No. 431 | Right hand latch - 4 way - used on line cords |  |
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| Plug No. 505 | 5 way variant of Plug No. 420. |  |
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| Plug No. 630 | As Plug No. 430 but with 6 connectors | |||
| Plug No. 631 | As plug No. 431 but with 6 connectors | |||
| WE4 | Used for terminating handset cords |  |
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| WE6 | Used for terminating line cords |  |
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| RJ45 | 8 way plug used for terminating computer network cables - see Category 5 wiring |
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