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. These circular connectors, compliant with military specification MIL-DTL-38999 I, are crafted from high strength aluminum shells, with various plating choices including cadmium-free finishes. Utilizing M39029 rear release crimp contacts, they guarantee reliable performance, even in extreme temperatures ranging from -65°C to 200°C. With a wide selection of shell sizes and insert arrangements, these connectors are versatile for diverse applications. RoHS compliant options are available, making them ideal for environmentally conscious projects. Trust in the durability and conductivity of MIL-DTL-38999 Series I connectors for your critical electrical connections.