MIL-DTL-38999 Series II connectors boast a high contact density, accommodating up to 128 contacts within a single insert. Designed for rugged environments, these connectors are fully sealed and can operate reliably in temperatures ranging from -65 °C to 200 °C. Available in various mounting styles, including front and rear wall mount, jam nut, and box mount configurations, they offer versatility for different applications. The connectors feature aluminum shells with options for plating finishes such as gold, electroless nickel, and cadmium-free coatings, ensuring durability and corrosion resistance. Utilizing M39029 rear release crimp contacts, they guarantee secure and efficient connections. With a mating type of Bayonet and a service rating of M, these connectors are ideal for demanding military and aerospace applications.