RE: Re: RE: Huge Electrical Plug Needed
The part number of Hubbell's equivalent plug is HBL360PS1W. I use one on the AC power cable for my HMMWV's S-250 commo shelter. The shelter's power inlet is a 4-pin circular connector rated at 70 amps, and I used the big pin and sleeve connector on the other end. This is the opposite of the way that the connectors are used on the M109 shop vans, but I don't like having exposed pins on the live end of the cable.
The power inlet connector on the shop van, with its shrouded pins, should be used as a power outlet. The connector family that they used for the M109 has cable-end connectors for both sides of the connection, but only has a bulkhead-mount connector for the pin end. If the family included a bulkhead-mounted sleeve connector, then that would be the one to have on the shop van body. Unfortunately, there isn't one, and the M109 designers chose to use the pin end on the van, leading to cables with exposed sleeves and a potential shock hazard when a live cable is unplugged from the van body.
The bolt pattern on the M109's connector is also compatible with modern (and more commonly available) IEC-309 pin and sleeve connectors. These ones have all four permutations of pin vs. sleeve and cable mount vs. bulkhead mount. If you would consider replacing the original connector with an IEC-309 pin and sleeve connector, and you can afford the cost of buying yet another expensive connector, and you don't mind that the plug bodies are plastic instead of metal, then you can create a power connection that won't create a shock hazard when unplugged. I decided to do this with one of my shop vans (which I've since sold).