MS27467T23B55SN RFI Shielded Plug | MIL-DTL-38999 Series I
MS27467T23B55SN is a 55-pin high-density socket plug. MIL-DTL-38999 Series I compliant, Cadmium finish with RFI shielding. [Get a Quote. 15 Min Response]
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MS27467T23B55SN: High-Density Interconnects for Mission-Critical Systems
In the sophisticated world of aerospace and defense electronics, maintaining signal integrity under extreme conditions is the primary engineering objective. The MS27467T23B55SN is a premier 55-pin RFI shielded plug, specifically engineered to meet the stringent MIL-DTL-38999 Series I requirements. As a critical component in the AVIA Connector specialized catalog, this series ensures consistent performance across high-vibration and electromagnetic interference-heavy environments.
The MS27467T23B55SN configuration is optimized for Shell Size 23, providing a secure and compact platform for 55 independent signal circuits using socket contacts. Its robust aluminum construction and specialized plating make it an essential choice for radar systems, communication hubs, and tactical ground equipment.
Key Specifications
Shell Material | Voltage Rating | Current Rating | Operating Temp | Ingress Protection | Mating Cycles | Keying & Polarization | Coupling |
|---|---|---|---|---|---|---|---|
Aluminum alloy | ~1000 VAC | ~40 A | -65 °C to +200 °C | IP67 | 500 | N | Quick bayonet coupling |

Technical Features of the MS27467T23B55SN Configuration
The design philosophy of the MS27467T23B55SN focuses on durability, safety, and rapid deployment. Featuring a “scoop-proof” shell design, this plug prevents accidental contact damage during blind mating—a vital requirement for maintenance in the confined spaces of modern aircraft and industrial machinery.
Core Parameters:
Model Number: MS27467T23B55SN
Shell Size: 23
Contact Arrangement: 23-55 (Contains 55 high-density size 20 contacts)
Contact Gender: Socket (S) with a “N” (Normal) polarization keyway
Plating: Olive Drab Cadmium (B) for superior corrosion resistance and 360-degree RFI shielding
Whether deployed in Russian industrial automation or Iranian aviation projects, the MS27467T23B55SN utilizes a rapid three-pin bayonet coupling system. This mechanism provides a secure, vibration-resistant lock that remains stable even under the intense harmonic resonance found in jet engines and high-speed transport systems.
Strategic Benefits of RFI Shielding and Grounding
The “467” designation of the MS27467T23B55SN indicates the inclusion of integrated grounding fingers. This feature ensures exceptional shell-to-shell conductivity, which is vital for maintaining signal purity in environments saturated with electromagnetic noise. By integrating the MS27467T23B55SN into your system architecture, you effectively eliminate the risks of signal crosstalk and external interference.
We provide detailed cross-reference guides for the MS27467T23B55SN to ensure a seamless drop-in replacement for equivalent Amphenol, Souriau, or ITT Cannon series.

Tactical Performance in High-Vibration Deployments
Mechanical stability at the interface is a non-negotiable requirement for defense electronics. The bayonet coupling system provides tactile and audible feedback upon locking, ensuring a complete mate every time. This locking force remains constant, preventing the coupling ring from backing off during mechanical shock or intense G-forces. For engineers designing equipment for remote industrial sites or tactical aircraft, this level of reliability is the foundation of system uptime.
FAQ
What is the benefit of the Socket (S) contacts in this model?
What is the benefit of the Socket (S) contacts in this model?
Socket contacts in the connector provide a recessed interface that is less prone to mechanical bending compared to pins, making them ideal for cable-side terminations in rugged environments.
How does the "scoop-proof" design protect the interface?
How does the "scoop-proof" design protect the interface?
The shell of the connector is elongated so that the mating contacts cannot be touched or damaged by the leading edge of the mating receptacle, even during an angled blind mate.
Is this series rated for maritime and salt-spray exposure?
Is this series rated for maritime and salt-spray exposure?
Yes, the Olive Drab Cadmium plating provides exceptional protection against galvanic corrosion, making the connector suitable for up to 500 hours of continuous salt spray exposure.
Can I use environmental backshells with this plug?
Can I use environmental backshells with this plug?
Absolutely. The rear of the connector is designed to accept various strain relief clamps and environmental backshells to prevent moisture ingress at the cable-to-connector junction.
How quickly can I get pricing for the MS27467T23B55SN?
How quickly can I get pricing for the MS27467T23B55SN?
We pride ourselves on rapid response times. Contact our team via Tawk.to, and we guarantee a formal quote for your requirements within 15 minutes.
Certification
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