The 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 shell sizes and insert arrangements, these connectors offer versatility in applications. Constructed with high-strength aluminum shells and plated with options like gold, electroless nickel, and cadmium, they ensure reliable performance. With a bayonet coupling and straight plug design, they provide secure and efficient connectivity. Compliant with MIL-DTL-38999 I military specification, these connectors are ideal for demanding industrial and aerospace environments.