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The HYSF SFLPBH4M is a rugged standard flat 4-pin male bulkhead watertight connector optimised for low-profile panel-mount through-hull installations in severe marine conditions. Widely applied in offshore flat panels, subsea housings, ROV junction boxes, underwater control systems, and marine vessels requiring secure sealed flat penetrations. Manufactured with corrosion-resistant materials, gold-plated contacts, and compact flat design, it achieves superior IP68 sealing and high pressure rating for deep ocean deployments. HYSF provides reliable standard flat subsea bulkhead connectors from China.
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Cable Length (Standard): 1.0m (Inline) / 0.3m (Bulkhead)
Customization: Cable length, mounting threads, and electrical ratings available upon request.
✅ ROVs & AUVs: Thruster connections and tether management.
✅ Underwater Cameras: Video signal transmission.
✅ Sensors & Instrumentation: CTD, Sonar, and Hydrophones.
✅ Diving Equipment: Diver communication systems.
✅ Offshore Energy: Oil & Gas subsea control modules.

Chief Technical Officer
jason@hysfsubsea.com
Explore high-resolution photos of actual production units. These images highlight our precision machining, quality overmolding, and attention to detail in every connector we ship.
Looking for bulk pricing or specific cable lengths (e.g., 0.3m, 1m, or custom)? Fill out the form below, and our sales team will send you a formal quotation within 12 hours.

CEO



