The MIL-DTL-38999 Series I connectors offer a rugged solution for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors are suitable for demanding applications. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for reliable connectivity. Constructed with high-strength aluminum shells and offered in different plating options, including RoHS certified finishes, these connectors ensure durability and performance. Whether in front wall mount, rear wall mount, or jam nut receptacles, they provide secure connections with bayonet coupling. Ideal for military and industrial use, these connectors are designed to withstand harsh conditions, making them essential components for critical systems.