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, they include front and rear wall mount receptacles, jam nut receptacles, and RFI grounding plugs. Utilizing M39029 rear release crimp contacts, these connectors are constructed with high-strength aluminum shells and come in multiple plating options, including RoHS-certified finishes. Designed for harsh environments, they ensure reliable performance with features like bayonet coupling, gold contact plating, and environmental resistance. Suitable for military and industrial applications, these connectors meet MIL-DTL-38999 I specifications.