MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, they boast a wide operating temperature range from -65 °C to 200 °C. Available in various configurations, including front and rear wall mount as well as jam nut receptacles, these connectors feature RFI grounding plugs for added versatility. With 52 insert arrangements utilizing M39029 rear release crimp contacts, they ensure reliable connections in sizes 22D, 22M, 22, 20, 16, and 8. Constructed with durable aluminum shells and offered in a range of plating options, including RoHS-certified finishes, these connectors meet stringent military specifications for performance and reliability. Ideal for applications requiring secure and enduring electrical connections in demanding environments.