MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with an operating temperature range of -65°C to 200°C. Offering front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, they provide versatility in connectivity. Available in 9 shell sizes and 52 insert arrangements, these connectors use M39029 rear release crimp contacts for reliable connections. Crafted in high-strength aluminum shells with various plating options, including cadmium-free finishes, they ensure durability and performance. Ideal for military and aerospace applications, these connectors are RoHS certified and suitable for demanding environments.