MIL-DTL-38999 Series I connectors are designed for demanding environments, featuring up to 128 contacts in an insert. These connectors are rugged and environmentally sealed, with an impressive operating temperature range from -65°C to 200°C. Available in various shell sizes and insert arrangements, they offer versatility for different applications. Constructed with high-strength aluminum shells and offering a range of plating options, including RoHS-certified finishes, these connectors ensure reliable performance. The series includes front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, catering to diverse mounting needs. Utilizing M39029 rear release crimp contacts, they guarantee secure connections in sizes 22D, 22M, 22, 20, 16, and 8 (coax and twinax). With a bayonet coupling design and gold contact plating, these connectors provide efficient and durable electrical connections. Whether for military or industrial use, the MIL-DTL-38999 I connectors meet the highest standards for environmental resistance and performance.