MIL-DTL-38999 Series I connectors offer robust connectivity with up to 128 contacts in an insert, ideal for harsh environments. Featuring front wall mount, rear wall mount, and jam nut receptacles, they ensure secure installations. These connectors, complying with military specification MIL-DTL-38999 I, boast a wide operating temperature range from -65 °C to 200 °C. With 52 insert arrangements and M39029 rear release crimp contacts, they provide versatility for various applications. Constructed with high-strength aluminum shells and available in different plating options, including RoHS-certified finishes, they ensure durability and performance. Suitable for demanding environments, they guarantee reliable electrical connections with gold-plated contacts and conductive properties. The bayonet coupling and environmental sealing further enhance their suitability for rugged settings. With a focus on quality and longevity, these connectors are essential for aerospace, defense, and industrial applications.