The MIL-DTL-38999 Series I connectors feature up to 128 environmentally sealed contacts in an insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they include M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8. These connectors, with front wall mount, rear wall mount, and jam nut receptacles, offer RFI grounding plugs and come in high strength aluminum shells with multiple plating options. Ideal for military and industrial applications, they ensure reliable performance with RoHS certified finishes available.