The MIL-DTL-38999 Series I connectors offer high-performance connectivity in harsh environments, featuring up to 128 contacts within an environmentally sealed insert. With an operating temperature range of -65°C to 200°C, these connectors are suitable for a wide range of applications. Available in various shell sizes and insert arrangements, they utilize reliable M39029 rear release crimp contacts. Constructed with high strength aluminum shells and offering multiple plating options, including RoHS compliant finishes, these connectors ensure durability and long-lasting performance. The straight plug design, with bayonet coupling and gold-plated removable crimp contacts, guarantees secure and efficient connections. Suitable for wall and jam nut mounting receptacles, they are ideal for military and industrial use, with an ingress protection rating for challenging environments.