MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, providing robust environmental sealing for diverse applications. With an operating temperature range spanning from -65 °C to 200 °C, they ensure reliable performance in harsh conditions. Available in various configurations such as front and rear wall mount receptacles, jam nut receptacles, and RFI grounding plugs, these connectors offer versatility. Compliant with military specification MIL-DTL-38999 I, they guarantee high-quality standards. Utilizing M39029 rear release crimp contacts in multiple sizes, including coax and twinax, they cater to a wide range of connectivity needs. Constructed with high strength aluminum shells and offering plating options such as electroless nickel and cadmium finishes, they ensure durability and corrosion resistance. The RoHS compliant cadmium-free options make them environmentally friendly. Suitable for applications requiring a straight plug configuration, these connectors with gold-plated removable crimp contacts provide excellent conductivity and mating reliability. With a service rating of I and a service class detail for potting, they are ideal for demanding environments.