MIL-DTL-38999 Series I connectors offer robust performance in harsh environments with up to 128 contacts sealed for environmental protection. Designed for reliable operation in extreme conditions, these circular receptacles feature various mounting options including front and rear wall mount as well as jam nut receptacles. With a wide range of shell sizes and insert arrangements, they accommodate M39029 rear release crimp contacts in various sizes, ensuring secure connections. Constructed with high-strength aluminum shells and available in multiple plating options, including RoHS-certified finishes, these connectors guarantee durability and conductivity. Suitable for military and industrial applications, they boast a wide operating temperature range of -65 °C to 200 °C, making them ideal for critical operations. Upgrade your connectivity with MIL-DTL-38999 Series I connectors.