MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various shell sizes and insert arrangements, these connectors come in high-strength aluminum shells with options for plating, including cadmium-free finishes. Offering front and rear wall mount, jam nut receptacles, and RFI grounding plugs, they use M39029 rear release crimp contacts. With a straight plug configuration and bayonet coupling, they ensure secure and reliable connections. Suitable for military and industrial applications, these connectors provide environment-resistant and conductive properties, with a contact gender of female and contact style of socket. They meet MIL-DTL-38999 I military specifications for quality and performance standards.