MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. These connectors are environmentally sealed, with a wide operating temperature range of -65 °C to 200 °C. Available in various mounting options including front wall, rear wall, and jam nut receptacles, they ensure reliable connectivity in demanding conditions. With 52 insert arrangements and M39029 rear release crimp contacts, these connectors offer versatility and durability. Constructed with high strength aluminum shells and offering a choice of plating options, they meet stringent military specifications for performance and reliability. Suitable for applications requiring RoHS compliance, these connectors are ideal for use in aerospace, defense, and other mission-critical industries.