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

MOQMOQ >200
>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

 Contact Resistance ()

 ≤5

 Termination

 Solder/Crimp


Related Resource


Related Customer Cases

Customer Reviews

   

Score
 Remove

Review Title

Review Text

   Effortless Plug-and-Play!


ClearChoiceX  2026-02-04

Easy to insert and remove, these connectors save time during assembly.
   Long-Lasting Performance!


TurboAtlas  2026-02-04

These connectors maintain their reliability even with frequent use.
   Ideal for Critical Applications!


ShadowHarborX  2026-02-04

Highly dependable MS27473 Connectors, suitable for aerospace, industrial, and professional projects.
   Reliable Electrical Contact!


GhostCompass  2026-02-04

Pins align perfectly, ensuring consistent conductivity and stable signal.
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