MIL-DTL-38999 Series I connectors are designed for rugged environments, featuring up to 128 contacts in an insert for reliable connectivity. With a wide operating temperature range of -65 °C to 200 °C, these connectors are suitable for harsh conditions. Available in various shell sizes and insert arrangements, they offer flexibility for different applications. Constructed with high-strength aluminum shells and offered in multiple plating options, including RoHS compliant finishes, they ensure durability and long-lasting performance. The connectors come in different mounting styles, such as front wall mount, rear wall mount, and jam nut receptacles, with RFI grounding plugs for added versatility. Compliant with military specification MIL-DTL-38999 I, these circular connectors are ideal for demanding military, aerospace, and industrial applications, providing reliable and secure electrical connections.