MIL-DTL-38999 Series I connectors feature up to 128 contacts within an environmentally sealed insert, designed for harsh environments with an operating temperature range from -65 °C to 200 °C. Available in various configurations like front and rear wall mount, as well as jam nut receptacles, they ensure secure connections. These connectors, conforming to military specification MIL-DTL-38999 I, offer versatility with 52 insert arrangements and M39029 rear release crimp contacts. Constructed with high-strength aluminum shells and plated with options like electroless nickel, they provide durability and reliability. With RoHS certified finishes available, they cater to diverse application needs, making them ideal for demanding environments where rugged connectivity is essential.