Military Circular Connectors

Military Circular Connectors — Built for the Toughest Missions

When reliability is non-negotiable, our Military Circular Connectors deliver. Engineered to perform in the harshest environments, these connectors provide secure, high-performance connections across land, air, and sea operations. They’re trusted by military and aerospace professionals worldwide for their proven durability, precision design, and uncompromising quality.

Reliable. Rugged. Mission-Ready.

Our military-grade circular connectors are designed for demanding defense and aerospace applications, providing reliable electrical connections under extreme conditions. Compliant with key military specifications such as MIL-DTL-38999, MIL-DTL-5015, and MIL-DTL-26482, these connectors are ideal for both signal and power transmission in mission-critical systems.

Key Specifications:
  • Shell materials: aluminum, stainless steel, or composite
  • Coupling types: bayonet, threaded, and quick-disconnect
  • Contact arrangements: wide variety to suit application needs
  • Sealing: IP67/IP68 ratings available for environmental protection
  • Performance: resistant to EMI, shock, vibration, and corrosion
  • Operating temperature range: up to -65°C to +200°C (varies by model)

A comprehensive selection of military circular connectors is offered to accommodate a broad spectrum of defense and aerospace application needs. This includes QPL-approved series such as MIL-DTL-38999, known for its high-density, high-performance capabilities in harsh environments; MIL-DTL-26482, a compact bayonet-style connector suitable for legacy systems; and MIL-DTL-5015, a rugged power and signal connector often used in heavy-duty ground and naval applications. In addition, commercial equivalents and cost-effective COTS (Commercial Off-The-Shelf) alternatives are available for non-critical or budget-sensitive applications, offering varying degrees of environmental sealing, EMI shielding, and mechanical durability. This portfolio enables optimized interconnect solutions tailored to system-critical, mission-specific, and logistical requirements.

 

PlugX – Military Circular Connector Comparison

Connector Series
Standard / Qualification
Key Features
Typical Applications
Notes
MIL-DTL-38999
QPL-approved (Series I–III)
High-density, EMI shielding, lightweight, sealed
Avionics, aerospace, missile systems
Preferred in space- lightweight sensitive systems
MIL-DTL-26482
QPL-approved (Series I & II)
Bayonet coupling, medium density, environmentally sealed
Ground vehicles, control panels, legacy retrofits
Versatile, used across military platforms
MIL-DTL-5015
QPL-approved
Rugged, high-power, threaded coupling
Heavy equipment, power distribution, navy systems
Ideal for high-current/power applications
MIL-DTL-83723
QPL-approved
Combines 38999 + 5015, flame/smoke resistant
Aerospace, harsh-environment helicopters
Used in high-risk, high-vibration scenarios
COTS Connectors
Commercial (Non-QPL)
Cost-effective, variety of materials and configurations
Non-combat support systems, logistics, training gear
Ideal for non-critical, budget-focused systems
38999 Commercial Variant
Commercial equivalents
Similar form, lighter specs, lower cost
Prototypes, simulation environments
Suitable for early-stage or civilian-grade adaptations
Connector Series
Standard / Qualification
Key Features
Typical Applications
Notes
MIL-DTL-38999
QPL-approved (Series I–III)
High-density, EMI shielding, lightweight, environmental sealing
Avionics, aerospace, missile systems
Preferred for weight- and space-sensitive designs
MIL-DTL-26482
QPL-approved (Series I & II)
Quick disconnect bayonet, medium density, sealed options
Ground vehicles, control panels, legacy systems
Common in retrofit and medium-performance needs
MIL-DTL-5015
QPL-approved
High-power capacity, rugged shell, threaded coupling
Heavy machinery, ground/naval systems
Excellent for power distribution applications
MIL-DTL-83723
QPL-approved
Hybrid of 38999 and 5015 features, fire/smoke resistance
Aircraft, helicopters, extreme environments
Used where performance + durability are critical
COTS (Commercial Off-the-Shelf)
Non-QPL / Commercial
Cost-effective, variety of materials, less rigorous testing
Non-combat systems, training equipment, logistics
Ideal for budget-sensitive or non-critical systems
38999 Commercial Variants
Commercial equivalents
Similar form factor, reduced cost, may lack full MIL compliance
Prototyping, non-military systems
Useful for early-stage design or test beds

Typical applications include avionics, military vehicles, radar systems, and communication infrastructure.

 

Comprehensive Product Portfolio 

In accordance with the specifications outlined by our clients, we possess the capability to supply military connectors of any brand, including but not limited to: Amphenol, Emca, Souriau, Glenair, Conesys, ITT Cannon, Huber+Suhner, Aero -Electric, Nicomatic, Harwin, and more…

Need help choosing the right connector?

Contact our technical team.