MIL-DTL-38999 Series II connectors feature up to 128 contacts within an environmentally sealed insert, designed for reliable performance in harsh environments. With an operating temperature range of -65 °C to 200 °C, these connectors offer versatility and durability. Available in various mounting styles including front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse installation needs. The connectors come in 9 shell sizes and 52 insert arrangements, accommodating M39029 rear release crimp contacts in different sizes. Constructed with aluminum shells and offering plating options such as gold, electroless nickel, and cadmium finishes, they ensure long-lasting quality. Meeting MIL-DTL-38999 II military specifications, these connectors are ideal for demanding applications that require high performance and reliability.