MIL-DTL-38999 Series II connectors offer high performance with up to 128 contacts in a sealed insert, ideal for harsh environments. Operating between -65 °C and 200 °C, these connectors come in various styles like front and rear wall mounts, jam nuts, and box mounts. Featuring thin walls and restricted lengths, they ensure a secure fit for your application. Available in 9 shell sizes and 52 insert arrangements, with gold-plated removable crimp contacts, they guarantee reliable connectivity. Made of durable aluminum with multiple plating options, including RoHS certified finishes, these connectors meet stringent military specifications for quality and performance. Perfect for aerospace, defense, and industrial applications, they offer longevity with 500 mating cycles and are designed for potting, making them versatile and dependable in demanding settings.