The MIL-DTL-38999 Series I connectors offer durability and reliability in harsh environments, featuring up to 128 contacts in an insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors are ideal for demanding applications. Available in various shell sizes and insert arrangements, they use M39029 rear release crimp contacts for secure connections. The high strength aluminum shells come in different plating options, including cadmium-free finishes for RoHS compliance. Whether for front or rear wall mount or jam nut receptacles, these connectors ensure optimal performance with their RFI grounding plugs and bayonet coupling. Suitable for military and industrial use, they provide a reliable solution for electrical connectivity in challenging conditions.