MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments with a wide operating temperature range of -65°C to 200°C. Available in front wall mount, rear wall mount, and jam nut receptacles, this connector family offers versatility with 9 shell sizes and 52 insert arrangements. Utilizing M39029 rear release crimp contacts, they ensure reliable connectivity in sizes 22D, 22M, 22, 20, 16, and 8 for coax and twinax applications. Constructed with high-strength aluminum shells, they come in various plating options, including cadmium-free finishes. Meeting MIL-DTL-38999 I military specifications, they guarantee durability and performance in demanding conditions.