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 mounting options including front and rear wall mount and jam nut receptacles, they ensure secure connections. With 52 insert arrangements and M39029 rear release crimp contacts, these connectors offer versatility and reliability. Constructed with high-strength aluminum shells, they come in different plating options such as light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum, catering to diverse needs. RoHS certified cadmium-free finishes are also available. Suitable for military and industrial applications, these connectors guarantee exceptional performance even in demanding conditions.