MIL-DTL-38999 Series II connectors feature up to 128 contacts housed in an insert, providing robust environmental sealing for reliable performance in harsh conditions. With a wide operating temperature range from -65 °C to 200 °C, these connectors are suitable for demanding applications. Available in various configurations including front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. The connectors come in aluminum shells with options for plating finishes such as cadmium-free and electroless nickel. Utilizing M39029 rear release crimp contacts, they ensure secure and efficient connections. Designed to meet military specification MIL-DTL-38999 II, these circular connectors are ideal for aerospace, defense, and industrial applications requiring high reliability and durability.