Used within Aircraft Ground Servicing Systems to provide the connection point for aircraft and helicopters. The plugs are designed for use on the flight decks and within the hangar to provide a watertight connection to the aircraft supplies.

The units are supplied with a screw fitting metal cap, to protect the plug when not in use, fixing bolts, sealing gasket and cable lugs. For the DC plugs a copper adapter plate is supplied for retro-fitting to original equipment.

These units are now fitted to all new and replacement systems and are a direct replacement for the original equipment. They have been supplied to both the British Royal Navy and other world navies.