MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in front wall mount, rear wall mount, and jam nut receptacles, they offer RFI grounding plugs and utilize M39029 rear release crimp contacts. With various plating options including cadmium-free finishes, these connectors come in high-strength aluminum shells. Meeting military specification MIL-DTL-38999 I, they ensure reliable performance with gold-plated removable crimp contacts and bayonet coupling. Suitable for potting applications, these connectors are ideal for aerospace, defense, and other rugged environments.