MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring front wall mount, rear wall mount, and jam nut receptacles with RFI grounding plugs. With up to 128 contacts and 52 insert arrangements, these connectors offer versatility in connectivity. Utilizing M39029 rear release crimp contacts, they ensure secure connections in sizes 22D, 22M, 22, 20, 16, and 8. Encased in high-strength aluminum shells with various plating options, including cadmium-free finishes, they guarantee durability and reliability. Operating between -65°C and 200°C, these connectors are ideal for a wide range of applications requiring environmental sealing and high performance.