The MIL-DTL-38999 Series I connectors offer robust connectivity with up to 128 contacts in an insert, designed for harsh environments. Featuring front and rear wall mount options, as well as jam nut receptacles, they ensure secure installations. With a wide operating temperature range from -65°C to 200°C, these connectors are suitable for demanding applications. Constructed with high-strength aluminum shells and available in various plating options, including RoHS-certified finishes, they guarantee durability and reliability. Utilizing M39029 rear release crimp contacts, they provide efficient connectivity. Meeting military specification MIL-DTL-38999 I, these circular connectors are ideal for aerospace, defense, and other rugged environments.