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. Offering front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, they ensure secure connections in demanding conditions. Available in 9 shell sizes and 52 insert arrangements, these connectors utilize M39029 rear release crimp contacts for reliable performance. Constructed with high-strength aluminum shells and various plating options, including cadmium-free finishes, they meet stringent military specifications. With a straight plug design and bayonet mating type, these connectors are ideal for applications requiring durable and environmentally resistant connectivity.