Abstract: A mated assembly (100) includes a sealed connector subassembly (10), a cap housing (20), a contact retention insert (30), a wire seal (40), a seal cover (50), a jack screw (60), and a header housing (70). Jack screw (60) is used to matably join the subassembly (10) with the header (70). Subassembly (10) comprises a cap housing (20) which includes a cavity (23) wherein the contact retention insert (30) is disposed along with a blanket type seal (40) for receiving electrical contacts that will electrically mate with respective pins of contact array (72). The contact retention insert (30) is advantageously connected to the cap housing (20) by way of insert retaining clip (32), and the bolt (60) is free to rotate but is axially trapped within cap housing (20) between washer (61) and bolt retaining clip (63).