MIL-DTL-38999 Series I connectors offer robust connectivity with up to 128 contacts in an insert, designed for harsh environments. Featuring front and rear wall mount options, as well as jam nut receptacles, they ensure secure installations. These connectors, compliant with military specification MIL-DTL-38999 I, operate efficiently in temperatures ranging from -65 °C to 200 °C. With 9 shell sizes and 52 insert arrangements, they accommodate diverse application needs. Utilizing M39029 rear release crimp contacts, they guarantee reliable performance. Constructed with high-strength aluminum shells and available in various plating options, including cadmium-free finishes, they prioritize durability and environmental sustainability. Ideal for demanding scenarios, they offer a mating life of 500 cycles and ensure excellent conductivity. Whether in aerospace, defense, or industrial settings, these connectors deliver dependable performance in challenging conditions.