These multi-pin instrument feedthroughs have D-shaped connectors on both air-side and vacuum-side and meet MIL-C-24308 standards. Each (gold-flashed) Ni/Fe alloy conductor is alumina insulated and rated for 500V at a maximum current of 5A. Neither the air-side nor vacuum-side plugs are included with the feedthrough. Feedthroughs of this type are designed for welding into a suitable through-hole in a flange.