The MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, offering reliable connectivity in harsh environments. With an operating temperature range from -65°C to 200°C, these connectors are ideal for demanding applications. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. The high-strength aluminum shells come in different plating options, including cadmium-free finishes, ensuring durability and performance. Designed for military specifications, these circular connectors are suitable for straight plug mounting, with gold-plated contacts for optimal conductivity. Their bayonet coupling and environmental sealing make them versatile for a wide range of uses.