MIL-DTL-38999 Series I connectors offer robust performance in harsh environments, featuring up to 128 contacts in an insert. These circular connectors are environmentally sealed, operating reliably in temperatures ranging from -65°C to 200°C. Available in various configurations such as front wall mount, rear wall mount, and jam nut receptacles, they ensure versatile connectivity. Utilizing M39029 rear release crimp contacts, these connectors guarantee secure and efficient connections. With options for different shell sizes and plating finishes like electroless nickel and cadmium olive drab, they meet diverse application needs. RoHS compliant options are also available, offering environmentally friendly solutions. Perfect for military and industrial applications, these connectors provide reliable performance in demanding environments.