The MS3106E18-10S from Amphenol Industrial Operations is cable mount circular connector (MIL-DTL-5015 type) environmental resisting. This is straight plug with female sockets, 4 position, 18-10 insert arrangement, threaded fastening and solder cup termination. This connector has copper alloy contacts with silver finish, neoprene insert and aluminum alloy shell with olive drab chromate over cadmium finish. Operating temperature range is from -55°C to 125°C.