MIL-DTL-38999 Series I connectors feature up to 128 contacts housed in an environmentally sealed insert, with an operating temperature range of -65 °C to 200 °C. Available in various mount types including front and rear wall mount, and jam nut receptacles, these connectors meet rigorous military specifications for harsh environments. With 52 insert arrangements using M39029 rear release crimp contacts, they offer reliable performance in sizes 22D, 22M, 22, 20, 16, and 8 (coax and twinax). Constructed with high-strength aluminum shells and offered in different plating options such as light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum, these connectors cater to diverse application needs. RoHS compliant finishes are also available, ensuring environmental responsibility. Perfect for demanding applications, the MIL-DTL-38999 Series I connectors are designed for optimal functionality and durability in critical settings.