MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with an operating temperature range of -65°C to 200°C. Available in various mounting options such as front wall mount, rear wall mount, and jam nut receptacles, these connectors offer RFI grounding plugs. With 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8. Constructed with high-strength aluminum shells and offering plating options including cadmium-free finishes, these connectors ensure reliability in demanding applications. The straight plug design with 26 gold-plated contacts (size 20) and electroless nickel coating guarantees efficient and durable performance, meeting MIL-DTL-38999 I military specifications for environmental resistance.