MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with operating temperatures ranging from -65°C to 200°C. Available in various mounting options including front and rear wall mount, as well as jam nut receptacles, these connectors ensure secure connections. With 52 insert arrangements and M39029 rear release crimp contacts, they offer versatility for different applications. Crafted from high-strength aluminum, the connectors come in multiple plating options such as cadmium and nickel for durability. RoHS certified finishes are also available, meeting environmental standards. Ideal for military and industrial use, these connectors guarantee reliable performance with features like bayonet coupling, gold-plated sockets, and potting protection.