MIL-DTL-38999 Series I connectors offer reliable performance in harsh environments, featuring up to 128 contacts in an insert. These circular receptacles, with Bayonet coupling, are designed for back panel box mounting with a range of shell sizes and insert arrangements. Utilizing removable crimp contacts, they ensure secure connections for applications requiring conductivity. With a wide operating temperature range from -65°C to 150°C, these connectors are suitable for diverse industrial settings. The high strength aluminum shells, available in various plating options including gold and electroless nickel, guarantee durability and performance longevity. Meeting MIL-DTL-38999 I military specifications, they provide enhanced environmental resistance and ingress protection, making them ideal for demanding applications.