MIL-DTL-38999 Series II connectors are designed for rugged environments, offering up to 128 contacts in a sealed insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors are ideal for harsh conditions. Featuring various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they provide versatility in installation. Available in 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts for reliable connectivity. Constructed with aluminum shells and plated with options like cadmium and nickel, these connectors ensure durability and performance. The straight plug design with EMI/RFI shielding, gold-plated contacts, and bayonet coupling mechanism make them suitable for military applications. Meeting MIL-DTL-38999 II specifications, these connectors guarantee high-quality standards for demanding operations.