The MIL-DTL-38999 Series II connectors feature up to 128 contacts in an insert, offering robust environmental sealing for reliable performance in harsh conditions. With an operating temperature range of -65 °C to 200 °C, these connectors are suitable for a wide range of applications. Available in various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they provide flexibility in installation. The connectors come in 9 shell sizes and 52 insert arrangements, accommodating M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12. Constructed with aluminum shells and offering plating options including electroless nickel and cadmium finishes, they ensure durability and corrosion resistance. Meeting MIL-DTL-38999 II military specifications, these connectors are ideal for demanding environments where reliable electrical connections are essential.