HYSF SMCDLSF / SMCDLSM Small Circular Dummy Locking Sleeve | Underwater Dummy Plug for Small Circular Connectors | Micro Circular Subsea Dummy Cap | Subconn Compatible Dummy Series

Plug Color Configuration High-visibility red POM (Polyoxymethylene) dummy body for instant underwater identification (standard color). Black Nitrile O-rings (standard), optional blue or green for quick mating status checks. Custom POM colors available upon request.

Main Parameters

• Type: Female Dummy Locking Sleeve (SMCDLSF) and Male Dummy Locking Sleeve (SMCDLSM)
• Depth Rating: 6000 meters
• Matings: >500 cycles
• Design: Precision dummy plugs to protect open Small Circular connectors from seawater, dirt, and pressure during storage or transport
• Compatibility: Fully interchangeable with Subconn® Small Circular Series dummy plugs
• Custom Options: Single or double O-ring, extended thread length, custom colors, and material upgrades

Material Parameters

• Dummy Body: High-strength POM (Polyoxymethylene) – excellent wear resistance and low friction
• O-Rings: Nitrile (standard) or Viton/FKM for enhanced chemical and temperature performance
• Optional Shell: 316L Stainless Steel or Titanium for extreme corrosion resistance applications

Dimension & Thread Specifications (All dimensions in mm)

SMCDLSF (Female Dummy Locking Sleeve)

• Overall Length: 36 mm
• Diameter: Ø18 mm
• Ribbed body for easy grip and secure locking

SMCDLSM (Male Dummy Locking Sleeve)

• Overall Length: 8.5 mm
• Compact male plug design for tight spaces

HYSF SMCDLSF and SMCDLSM Small Circular Dummy Locking Sleeves are precision-engineered protective caps designed to safeguard open Small Circular connectors from seawater ingress, dirt, and pressure damage. Manufactured with premium POM and Nitrile components, these dummy plugs deliver unmatched durability and reliability for ROVs, AUVs, underwater cameras, sensors, and subsea instrumentation.

Fully customizable – choose single or double O-ring configuration, custom colors, extended lengths, or exact Subconn dimensional matching. Contact HYSF for OEM solutions and fast prototyping.

Keywords: SMCDLSF dummy plug, SMCDLSM locking sleeve, small circular underwater dummy cap, Subconn compatible small circular dummy, 6000m depth dummy plug, ROV AUV dummy connector, POM dummy locking sleeve, subsea connector protector, micro circular dummy plug.