HYSF RMG4FS Underwater Inline Female Connector – RM Series 4 Contacts Subsea Cable Connector

Plug Color Configuration Standard black Chloroprene rubber body with high-contrast black cable jacket for maximum underwater visibility and corrosion resistance. Inline cable features clear color-coded conductors (A black, B white, C red, D green) per HYSF RM Series standard, ensuring quick identification during ROV/AUV operations and offshore installations. The sleek matte-black finish blends perfectly with HYSF’s full underwater connector lineup while providing excellent low-light performance in deep-sea environments.

Main Parameters

• Depth Rating: 6000 meters
• Mating Cycles: >500
• Electrical Specification: 300V @ 3-5 Amp
• Contact Resistance: <0.010Ω
• Isolationswiderstand: >200 MΩ
• Temperature Range: -4°C to +60°C
• Cable Specification: 20AWG
• IP Rating: Full IP68 / 6000m subsea pressure protection Engineered for reliable power and signal transmission in extreme marine conditions, the HYSF RMG4FS delivers unmatched performance for subsea sensors, cameras, ROV tools, and oceanographic equipment.

Material Parameters

• Connector Body: High-performance Chloroprene rubber for superior flexibility and sealing
• Contacts: Gold plated brass for excellent conductivity and corrosion resistance
• O-Rings: Nitrile (NBR) for reliable watertight performance
• Nuts & Washers: Stainless steel (optional 316L upgrades available)
• BH Body Option: 316L stainless steel or titanium for maximum durability
• Locking Sleeve: Premium POM (Polyoxymethylene) All materials are rigorously selected for long-term exposure to saltwater, UV, and high pressure, guaranteeing zero water ingress and extended service life in the harshest subsea applications.

Dimension & Thread Specifications RMG4FS Inline Female Connector:

• Maximum Diameter: Ø18.5 mm
• Body Section Diameter: Ø12.75 mm
• Overall Compact Design: Optimized for tight spaces in subsea harnesses
• Cable Entry: Straight inline configuration for easy integration
• Thread Compatibility: Metric threads available; compatible with HYSF standard mounting and locking sleeves (G-FLS-D / G-MLS-D)
• Dimensions in mm (1 inch = 25.4 mm)

Precision-machined to HYSF’s exacting standards, the RMG4FS offers perfect compatibility with RM Series male connectors (RMG4MP), bulkhead variants, and the complete HYSF underwater connector ecosystem.underwater inline connector, HYSF RMG4FS, subsea 4-pin female connector, RM Series underwater connector, 6000m depth rated cable connector, ROV AUV subsea connector, marine 20AWG connector, Chloroprene rubber underwater plug, gold plated brass contacts connector, deep sea power signal connector.

The HYSF RMG4FS is the perfect choice for demanding subsea applications including offshore oil & gas, renewable energy, scientific research, and underwater robotics. Fully compatible with HYSF RM Series 2–4 contact connectors and dummy plugs. Custom cable lengths, shell materials, and thread options available. Contact HYSF for your complete underwater connector solution.