Product Series

（100% SubConn、Seacon and Burton Compatible）

HYSF RM Series 1 Pin Subsea Connector Single Contact Underwater Connector

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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

Single contact center pin in high-visibility copper/gold plated finish for easy mating identification. Inline cable jacket in standard black. O-rings in black Nitrile (standard), optional blue/green for quick underwater status check. Bulkhead versions feature stainless steel silver hex nut. Locking sleeves (K-FLS-D / K-MLS-D) in durable black POM. Custom cable jacket colors and laser marking available.

3. Main parameters

HYSF RM Series 1 Pin Subsea Connector | Single Contact Underwater Connector | RM Series High Power Bulkhead Connector | Subconn Compatible RM 1 Contact

Contacts: 1 pin (RM Series single contact)
Depth Rating: 6000 meters
Matings: >500 cycles
Electrical Specification: High-current power transmission (300V / up to 10 Amp)
Contact Resistance: <0.010 Ω
Insulation Resistance: >200 MΩ
Temperature Rating: -4°C to +60°C
Design: Ultra-compact low-profile single-pin construction with robust bulkhead mounting
Compatibility: Fully interchangeable with Subconn® RM Series 1 Contact
Custom Options: Single/Double O-ring, extended thread lengths, custom cable lengths, material upgrades

4. Material & Installation Requirements

Connector Body: High-flex Chloroprene rubber for superior sealing and flexibility
Shell / Bulkhead: 316L Stainless Steel (standard) or Titanium (optional for lightweight & extreme corrosion resistance)
Contacts: Gold plated brass / copper pin for maximum conductivity
O-Rings: Nitrile (standard) or Viton/FKM
Locking Sleeve / Dummy: POM (Polyoxymethylene)
Nuts & Washers: Stainless Steel

5. Dimension & Thread Specifications

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

Inline Versions

RMK1FS (Female): Ø19 mm / Ø26 mm, compact inline design
RMK1MP (Male Plug): Ø19 mm, Length 15.9 mm
RMK1FSD (Female Double Seal): Ø26 mm
RMK1MPD (Male Double Seal): Ø19 mm / Ø26 mm

Bulkhead Version

XSK-1-BCL: 1″-14 UNF thread, O-ring 2-213, Hex size 41.3 mm, Overall length 31.9 mm

Accessories

K-FLS-D (Female Locking Sleeve): Ø37 mm × 47 mm
K-MLS-D (Male Locking Sleeve): Ø17.5 mm

HYSF RM Series 1 Contact connectors are engineered for simple, high-reliability single-pin power connections in the most space-constrained underwater applications. Perfect for ROVs, AUVs, underwater lights, sensors, thrusters, and subsea instrumentation requiring a single high-current line. The low-profile design with heavy-duty 1″ UNF bulkhead mounting delivers leak-proof performance at full ocean depth.

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