Our MIL-DTL-38999 (D38999) series connectors are high-performance, rugged circular interconnects built to meet and exceed the strictest U.S. military specifications, delivering superior quality, uncompromising reliability, and full customization for mission-critical military, aerospace, and harsh industrial environments.

Superior Quality & Robust Performance

• Compliance & Certification: Fully qualified to MIL-DTL-38999 (Series I, II, III) and DLA QPL standards, ensuring full interchangeability with global mil-spec systems.

• Precision Engineering: Machined aerospace-grade aluminum, stainless steel, composite, or marine bronze shells; gold-plated copper alloy contacts for low resistance and long-term stability.

• Extreme Environment Resilience:

   

• Temperature range: -65°C to +200°C

• IP67 sealing, resistance to hydraulic fluids, jet fuel, and corrosive agents

• EMI shielding: ≥65dB at 10GHz via metal-to-metal coupling and grounding fingers

• Vibration/shock: 10–2,000Hz at 196m/s²; shock up to 980m/s²

• Durability: ≥1,000 mating cycles; insulation resistance ≥10,000MΩ

• Scoop-proof & Anti-Cross-Thread: Triple-start thread coupling prevents mis-mating and contact damage; self-locking for high-vibration stability.

Full Customization Capabilities

We tailor every connector to your exact application needs:

• Contact Configurations: Custom pin layouts (1–187 contacts), mixed power/signal, high-current (up to 23A), and high-voltage options.

• Shell & Material Customization: Special platings (cadmium, nickel, zinc-nickel, PTFE), composite lightweight shells, hermetic glass-to-metal seals, and filtered/EMI-suppressed designs.

• Termination & Mounting: Crimp, solder, or PCB terminations; straight/45°/90° backshells, jam-nut, wall-mount, box-mount, and custom flange patterns.

• Specialized Solutions: Hermetic, space-grade (Class H), radiation-hardened, and lanyard-release connectors for manned flight and weapons systems.

• Quick-Turn Modifications: Fast prototyping and small-batch custom builds to meet tight project timelines.

Typical Applications

• Military: Aircraft, ground vehicles, radar, communications, weapons systems

• Aerospace: Commercial airliners, satellites, launch vehicles, avionics

• Industrial: Heavy machinery, oil & gas, marine, rail, and high-shock automation

Our Value Proposition

• Unmatched Quality: Rigorous in-house testing and 100% inspection guarantee zero defects in critical applications.

• Flexible Customization: From standard off-the-shelf to fully engineered bespoke solutions.

• Proven Reliability: Field-proven for decades in the harshest operating conditions worldwide.

Our MIL-DTL-38999 connectors stand as the ideal choice for projects demanding premium quality, full customization, and unwavering performance in the most demanding environments