MIL-DTL-38999 Connector Accessories

MIL-DTL-38999 connector accessories are used for shielded cable and shielding braid termination. They are available in straight and 90-degree elbow types. When the connector accessories are paired with a titanium-nickel ring, they provide 360-degree EMI and RFI shielding protection.

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Specifications
Mating Compatibility MIL-DTL-38999 Series I/II/III/IV
Shell Size 9 to 25
Wire Accommodation 0.1 to 10 mm² (Multi-core / Shielded / Unshielded)
EMI Shielding 100 MHz to 10 GHz: ≥ 60 dB
Operating Temperature -65 °C to +200 °C
Ingress Protection IP67 / IP68
Salt Spray 48 to 1,000 h (depending on coating class)
Mating Cycles 500 cycles
Vibration 10 to 2000 Hz, 294 m/s²
Mechanical Shock 300 g, 3 ms, half-sine wave
Cable Retention Force Size 22D to 10: 45 N to 111 N
Shell Material Aluminum Alloy, Stainless Steel, Copper Alloy
Plating Olive Drab Cadmium, Electroless Nickel, Passivated
Seal Material Silicone / Fluorosilicone Rubber
Coupling Threaded / Bayonet / Crimp
Features
  • The accessories are compatible with MIL-DTL-38999 I/II/III/IV connectors, for a wide range of shell sizes, mounting options, and cable types
  • Designed for harsh environments with IP67/IP68 protection, including resistance to salt spray, humidity, and extreme temperatures.
  • Their EMI shielding is achieved through all-metal or shielded construction with continuous grounding to the connector housing for stable signal performance.
  • Feature high mechanical strength to ensure resistance to vibration, shock, and cable pull-out for long-term reliability in demanding applications.
  • Quick-lock and threaded designs support fast assembly without soldering and allow easy field maintenance and replacement.
  • They have a corrosion-resistant design made of aluminum alloy or stainless steel with military-grade plating, for protection against oil, solvents, and fungal exposure.
High Wood works with customers across Asia, Europe, the Americas, and other international markets, building long-term partnerships with more than 200 companies worldwide, including Klemsan (Turkey), CPE (Italy), and SUNGJIN (Korea). Backed by over 10 years of experience in the connector industry, we have an R&D team that focuses on practical engineering work, from electrical connector design and structural optimization to detailed drawings, helping customers move smoothly from development to mass production.