MIL-DTL-38999 III (D38999) harsh environment connectors offer rugged performance in a variety of applications. Available in wall mount and jam nut receptacles, as well as straight self-locking RFI plugs, these connectors come in 9 shell sizes and 54 insert arrangements, accommodating M39029 contacts in various sizes. With options for aluminum, stainless steel, and lightweight composite shells, and plating choices including olive drab cadmium, nickel, black zinc nickel, and passivated stainless steel, these connectors provide versatility and durability. Meeting RoHS-compliant and Boeing BACC-approved standards, they ensure reliable connectivity in demanding environments.