The MIL-DTL-38999 Series II 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 such as front and rear wall mount, jam nut, and box mount receptacles, these connectors offer versatility for different applications. With a selection of shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12. Constructed with durable aluminum shells and offered in multiple plating options including cadmium-free finishes, these connectors ensure reliability and performance in demanding conditions. The straight plug design with bayonet coupling and gold contact plating, along with their compliance with MIL-DTL-38999 II military specifications, make them ideal for use in aerospace, defense, and other industries where rugged connectivity is essential.