MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various mounting options like front wall, rear wall, and jam nut receptacles, they offer versatility in applications. With 52 insert arrangements and M39029 rear release crimp contacts, these connectors ensure reliable connections. Constructed with high-strength aluminum shells and offering plating options such as gold, electroless nickel, and more, they meet diverse needs. RoHS compliant finishes are also available, making them suitable for a range of industries. With a rugged design, these connectors are ideal for demanding environments requiring durability and performance.