MIL-DTL-38999 Series I connectors offer a robust solution for harsh environments, featuring up to 128 contacts in an insert. With options for front and rear wall mount, as well as jam nut receptacles, they provide versatile connectivity. These connectors, compliant with military specification MIL-DTL-38999 I, are designed for durability, with a wide operating temperature range of -65 °C to 200 °C. Made with high-strength aluminum shells and offering various plating options, including RoHS certified finishes, they ensure reliable performance. Utilizing M39029 rear release crimp contacts, these connectors come in 9 shell sizes and 52 insert arrangements, accommodating different needs. Whether in aerospace, defense, or industrial applications, MIL-DTL-38999 Series I connectors deliver on conductivity, ingress protection, and mating durability.