MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, offering robust environmental sealing for extreme conditions with an 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. With front wall mount, rear wall mount, and jam nut receptacles, they cater to diverse installation needs. Utilizing M39029 rear release crimp contacts, they ensure secure and reliable connections. The connectors, compliant with military specifications, are ideal for demanding applications requiring durability and performance in harsh environments.