MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Offering front wall mount, rear wall mount, and jam nut receptacles, they ensure secure connectivity. These connectors, meeting military specification MIL-DTL-38999 I, come in 9 shell sizes and 52 insert arrangements, accommodating various applications. Utilizing M39029 rear release crimp contacts, they guarantee reliable performance. Constructed with high-strength aluminum shells and available in different plating options, including RoHS compliant finishes, these connectors provide durability and versatility. Suitable for back panel and box mounting with bayonet coupling, they are essential for demanding environments requiring ruggedized electrical connections.