DESCRIPTION

The D38999/26FG11PN is a MIL-DTL-38999 Series III subminiature connector designed for rugged, harsh environment applications in aerospace, defense, and marine systems. This straight plug connector features a threaded 360° turn coupling mechanism with scoop-proof design and environmental sealing to protect against contamination and moisture ingress. The connector supports up to 187 maximum signal contacts with standard contact sizes of 23, 22, 20, 16, 12, 10, and 8, using AS39029 contact type in crimp, solder cup/eyelet, or PCB tail styles. It operates across a wide temperature range of -65°C to +200°C (depending on shell finish), with 500 mating cycles durability and available higher-durability versions. The connector is available with multiple shell materials (stainless steel, aluminum, or composite) and plating options including electroless nickel, nickel PTFE, black zinc-nickel, and olive drab cadmium, with EMI spring fingers for electromagnetic interference control. These connectors are ideal for critical interconnect applications requiring environmental sealing, EMI shielding, and reliable performance in demanding aerospace and defense environments.