MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. These connectors offer reliable performance with environmental sealing and a wide operating temperature range of -65 °C to 200 °C. Available in various configurations including front and rear wall mount receptacles and jam nut plugs, they meet stringent military specifications for durability. With 52 insert arrangements and M39029 rear release crimp contacts, these connectors ensure secure connections in demanding applications. Constructed with high strength aluminum shells and offering a choice of plating options, including RoHS compliant finishes, they provide excellent conductivity and protection. Suitable for aerospace, defense, and industrial use, MIL-DTL-38999 Series I connectors deliver robust and dependable connectivity in critical operations.