MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, providing robust connectivity in harsh environments. With operating temperatures ranging from -65°C to 200°C, these connectors are suitable for a wide range of applications. Available in various shell sizes and insert arrangements, they offer versatility in design. Constructed with high-strength aluminum shells and offering different plating options including cadmium-free finishes, these connectors ensure reliable performance. The family includes front and rear wall mount receptacles, as well as jam nut receptacles and RFI grounding plugs, all with bayonet coupling. Utilizing M39029 rear release crimp contacts, they guarantee secure and efficient connections. RoHS compliant options are also available, making them environmentally friendly choices for demanding industrial and military environments.