MIL-DTL-38999 Series I connectors are designed for rugged environments, offering up to 128 contacts in a sealed insert. With an operating temperature range of -65°C to 200°C, they provide reliable performance in harsh conditions. Available in various shell sizes and insert arrangements, these connectors feature M39029 rear release crimp contacts for secure connections. Constructed with high-strength aluminum shells and plated with options like gold and electroless nickel, they ensure durability and conductivity. Meeting military specifications, they are ideal for applications requiring a high level of reliability and performance.