MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, with environmental sealing for reliable performance in harsh conditions. Operating temperature ranges from -65°C to 200°C, making them suitable for a wide range of applications. Available in various shell sizes and insert arrangements, these connectors offer versatility in design. Constructed with high strength aluminum shells and offered in different plating options, including RoHS certified finishes, they ensure durability and compliance with industry standards. The connector types include front wall mount, rear wall mount, and jam nut receptacles, with RFI grounding plugs for enhanced functionality. Utilizing M39029 rear release crimp contacts, they provide secure connections in sizes 22D, 22M, 22, 20, 16, and 8 (coax and twinax). Ideal for military and industrial use, these connectors meet the stringent requirements of MIL-DTL-38999 I specifications.