MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts in a durable insert. These environmentally sealed connectors are designed for harsh environments, with an operating temperature range of -65 °C to 200 °C. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they provide versatility for different applications. Featuring 52 insert arrangements and M39029 rear release crimp contacts, these connectors ensure reliable connections in aerospace, defense, and industrial settings. Constructed with aluminum shells and offering RoHS certified finishes, they meet stringent quality standards. With gold-plated contacts and a mating cycle of up to 500, these connectors guarantee optimal performance and durability. Perfect for demanding environments, the MIL-DTL-38999 Series II connectors are a trusted choice for critical operations.