MIL-DTL-38999 Series I connectors offer robust connectivity with up to 128 contacts in a single insert, designed for harsh environments. Featuring front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, they ensure secure connections. With a wide operating temperature range of -65 °C to 200 °C, these circular connectors are suitable for various applications. Constructed with high-strength aluminum shells and available in multiple plating options, including RoHS-compliant finishes, they provide both durability and environmental compliance. The use of M39029 rear release crimp contacts guarantees reliable performance, making them ideal for military and aerospace industries.