MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts, designed for harsh environments. Featuring front wall mount, rear wall mount, and jam nut receptacles, they ensure secure installations. These circular connectors, complying with military specification MIL-DTL-38999 I, are constructed with durable aluminum shells and are environmentally sealed for reliability. With a wide operating temperature range of -65 °C to 200 °C, they are suitable for demanding applications. Available in various plating options, including RoHS-certified finishes, these connectors guarantee optimal performance. Their versatility is enhanced by 52 insert arrangements, accommodating M39029 rear release crimp contacts in different sizes. Suitable for military and industrial use, MIL-DTL-38999 Series I connectors are a trusted choice for rugged connectivity needs.