Product Series

(100% SubConn、Seacon and Burton Compatible)

HYSF Subsea Penetrator | M8 & 7/16 Underwater Cable Penetrator

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1. Drawing information

Dimensions in mm (1 mm = 0.03937 inch)
Threads in inches (1 inch = 25.4 mm)

2. Plug Color Configuration

Standard inline cable jacket: Black (custom colors available). O-ring: Black Nitrile (standard), optional blue or green for easy identification. Penetrator body: Stainless Steel natural silver finish with black Chloroprene rubber molding. Custom anodized or colored marking available upon request.

3. Main parameters

HYSF Subsea Penetrator | M8 & 7/16 Underwater Cable Penetrator | Bulkhead Penetrator Connector | 6000m Depth Rated Subsea Feedthrough | Subconn Compatible Penetrator

  • Depth Rating: 6000 meters
  • Matings: >500 cycles
  • Electrical Specification: 300V/8–10 Amp (customizable)
  • Contact Resistance: <0.010 Ω
  • Insulation Resistance: >200 MΩ
  • Temperature Rating: -4°C to +60°C
  • Pressure Rating: Full ocean depth
  • Compatibility: Fully interchangeable with Subconn® penetrators and most subsea brands
  • Custom Options: Single/Double O-ring, thread length, cable length, contact configuration, and material upgrades

4. Material & Installation Requirements

  • Connector Body: Chloroprene rubber (excellent seawater sealing)
  • Penetrator Shell / Threaded Body: 316L Stainless Steel (standard)
  • Optional: Titanium for maximum corrosion resistance and reduced weight
  • Contacts: Gold plated brass
  • O-Rings: Nitrile (standard) or Viton/FKM
  • Nuts & Washers: Stainless Steel

5. Dimension & Thread Specifications

 (All dimensions in mm. Threads in inches. 1 inch = 25.4 mm)

M8 Penetrator

  • Thread: M8 × 1.0
  • Overall Length: 14 mm (cable side) + 15 mm (thread side)
  • Threaded Section: 11 mm
  • O-Ring: 2-014
  • Mounting Hole: Ø15 mm
  • Hex / Flange Diameter: Ø23.5 mm

7/16 Penetrator

  • Thread: 7/16″-20 UNF-2A
  • Overall Length: 19.05 mm (cable side) + 19 mm (thread side)
  • Threaded Section: 19 mm
  • O-Ring: 2-014
  • Mounting Hole Diameter: Ø23.5 mm
  • Panel Side Protrusion: 17.3 mm
  • Hex Size: Standard 7/16″ tools

HYSF Subsea Penetrators are high-reliability waterproof feedthrough connectors designed for permanent bulkhead cable penetration in harsh underwater environments. Ideal for underwater cameras, sensors, ROV thrusters, lights, sonar equipment, and subsea instruments. Available in both metric M8 and imperial 7/16″ thread versions for easy integration into existing systems.

Fully customizable – single or double O-ring configuration, extended threads, custom cable lengths, titanium construction, and exact dimensional matching to Subconn penetrators.

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Contact

Jason Liu

Chief Technical Officer

HYSF Subsea

jason@hysfsubsea.com

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Start Your Subsea Project with HYSF

Whether you need a quick quote for standard connectors or a complex custom cable assembly, our engineering team is ready to assist. Expect a technical response within 12 hours.

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Jason Liu
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