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MS27473 Series Connectors MIL-DTL-38999 Series II for Avionics

>Number Of CoresNumber Of Cores 2-128Pin
Contact DiameterContact Diameter(mm) 0.88mm-2.7mm
IP RatingIP Rating IP67
Shell MaterialShell Material Aluminum Alloy
Temperature RangeTemperature Range -60℃ ~ +200℃
TerminationTermination Solder/Crimp
Rated CurrentRated Current(A) 3A/7.5A/23A
Rated VoltageRated Voltage(Ac.V) 600V
Test VoltageTest Voltage(Ac.V)1Min 1500V
Insulation ResistanceInsulation Resistance (MΩ) ≥5000MΩ
Contact ResistanceContact Resistance (MΩ) ≤5MΩ
CertificationCertification CE, RoHS,BASCI,ISO9001
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MS27473 Series Connectors: MIL-DTL-38999 Series II Low-Profile High-Density Circular Connectors

Engineered to meet MIL-DTL-38999 Series II military specifications, the MS27473 series is a lightweight, space-saving connector built for compact, high-demand aerospace, defense, and industrial applications—where limited installation space and extreme reliability are critical. We offer the full MS27473 lineup, with 2–128 pin counts available to match your system’s exact needs.

Circular Connector


Available Models and Customizable Options

We stock the full range of MS27473 series models, covering various shell sizes and pin counts to fit diverse application needs. Common models include:
MS27473T12B02P: small shell size, suitable for micro signal transmission
MS27473T12B04S: low-pin configuration, ideal for simple circuit connections
MS27473T15B11P : medium pin count, meeting multi-channel signal requirements
MS27473T18B22S: cost-effective option for industrial control modules
MS27473T21B35P: multi-pin integration, suitable for secondary avionics systems

MS27473T23B51S: high-density configuration, meeting complex equipment signal integration needs

MS27473T25B61P: large pin count option for large industrial control panels

MS27473T31B128S: ultra-high density, suitable for satellite communication and high-end avionics systems

Connector


Core Advantages of MS27473 Connectors
Low-Profile Design + Flexible Pin Counts
The ultra-thin shell (a signature of MIL-DTL-38999 Series II) fits tight installation spaces, paired with 2-128 contacts (0.8mm-2.7mm diameters) to support everything from small signal setups to high-density multi-channel systems.

MS Connector


Quick Bayonet Lock + Lightweight Durability

Its 3-pin bayonet coupling enables 1/4-turn blind mating (anti-mislocation) for fast, hassle-free field installations. The aluminum alloy housing (or corrosion-resistant stainless steel) keeps weight low—ideal for aerospace and portable military gear—with 500+ mating cycles and 500h salt spray resistance.

Connector


Extreme Environment Readiness

With a -65℃ to +200℃ operating range and IP67/IP68 sealing, plus PEI/PPS (or ceramic) insulation, the MS27473 delivers stable 600V AC/23A transmission in extreme heat, cold, or moisture—trusted for marine offshore and high-vibration industrial setups.

Electrical Connector


Ideal Applications
Aerospace cabin avionics & UAV systems
Compact military communication gear
Miniaturized industrial control panels
Marine offshore monitoring equipment

Item

Parameters

Number of Cores

2-128Pin

Gender

Male/Female

Housing Material

Aluminum Alloy

Cores Material

Brass Plated with Gold

Insulator Material

PEI/PPS

Locking System

Bayonet Lock

Temperature Range

-60℃, +200℃

Rated Current (A)

3A/7.5A/23A

Rated Voltage (AC.V)

600V

Test Voltage (AV.C)1Min

1500V

Insulation Resistance ()

≥5000

Insulation Resistance ()

≤5

Termination

Solder/Crimp


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Customer Reviews

   

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Review Text

   Reliable Electrical Contact!


GhostCompass  2026-02-04

Pins align perfectly, ensuring consistent conductivity and stable signal.
   Designed for Tough Environments!


FlashTracker  2026-02-04

MS27473 Connectors withstand harsh conditions while maintaining excellent performance.
   Secure Locking Mechanism!


PrimeNavigator  2026-02-04

Provides firm, stable connection that holds even under vibration or movement.
   Robust and Precision-Built


SmartVoyager  2026-02-04

MS27473 Connectors feel solid and deliver precise, reliable performance every time.
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