MIL-DTL-38999 Series I connectors offer robust connectivity solutions with up to 128 contacts, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Featuring front wall mount, rear wall mount, and jam nut receptacles, they ensure secure installations in various applications. These connectors, compliant with military specification MIL-DTL-38999 I, are crafted with high-strength aluminum shells and come in 9 shell sizes and 52 insert arrangements. Utilizing M39029 rear release crimp contacts, they guarantee reliable performance, with options for RoHS certified cadmium-free finishes, including electroless nickel and black anodized aluminum. Ideal for demanding environments, these connectors provide excellent conductivity and ingress protection, making them a dependable choice for critical operations.