MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, offering environmental sealing and a wide operating temperature range of -65 °C to 200 °C. Available in various shell sizes and insert arrangements, these connectors come in high-strength aluminum shells with options for plating, including cadmium-free finishes. The family includes front and rear wall mount receptacles, jam nut receptacles, and RFI grounding plugs, all designed for harsh environments. Utilizing M39029 rear release crimp contacts, they ensure reliable connections. With a straight plug shell style and bayonet coupling, they are ideal for military and industrial applications requiring secure and durable electrical connections.