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Spare Parts

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BNWAS (Bridge Navigational Watch Alarm Systems)

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Bridge Navigational Watch Alarm Systems Spare Parts Suppliers

A Bridge Navigational Watch Alarm System (BNWAS) keeps the bridge alarm chain working when the officer of the watch stops responding. 

Like all electronics at sea, the unit eventually needs replacement parts. Reset buttons wear out from constant pressing. Motion sensors collect dust and lose sensitivity. Controllers fail under voltage spikes. Sounders age and crack. Each of these stops the system from passing its annual class survey. 

BNWAS spare parts suppliers keep the right components in stock and matched to the right brand. RecordsMarine's directory groups vendors by region, so a chief officer can find replacement stock before the next survey window.

Common BNWAS Spare Parts

The parts ordered most often:

  • Reset buttons for bridge consoles
  • Motion sensors (PIR and microwave types)
  • Main controller units and timer boards
  • Power supply modules and backup batteries
  • Cabin and crew alarm sounders
  • Visual flashing beacons and indicator lamps
  • Wiring harnesses and connector blocks
  • Front panel keypads and displays
  • Software memory cards and firmware modules.

Reset buttons and motion sensors are the highest-turnover items. Suppliers of BNWAS spare parts typically stock these in depth across the major brands. Controllers and timer boards have lower demand but longer lead times when ordered.

Brand-Specific Stock Matters

The BNWAS market splits across Daniamant, Furuno, JRC, Tokyo Keiki, McMurdo, and Marine Technologies. 

Parts cannot be swapped between brands. A Daniamant motion sensor will not fit a Furuno controller. Software keys, connector pinouts, and reset codes all differ. 

BNWAS spare parts distributors with strong inventory carry stock across at least three brands. Single-brand specialists go deeper on one platform but force the buyer to manage multiple supplier relationships across a mixed fleet.

OEM and Aftermarket Stock

Most ships use both channels. OEM parts come directly from the system maker and carry full type approval. Aftermarket parts are sourced through authorised resellers and often ship faster. Both work for non-critical items like wiring harnesses and indicator lamps. Safety-critical items, such as controllers, motion sensors, and reset buttons, should always carry valid type approval paperwork.

What to Check Before Ordering

A counterfeit controller can pass bench testing and fail two months into service. Class surveyors check part documentation during the annual safety survey, and a missing certificate can hold the ship in port. Before approving any new BNWAS spare parts suppliers, confirm:

  • Direct OEM sourcing or documented aftermarket chain
  • IMO MSC.128(75) type approval certificates with each part
  • Stock lists matching the brands fitted to your fleet
  • Delivery to your main trading ports
  • 12-month warranty minimum on electronic boards
  • Returns policy on incorrect or sealed items.

Stock Onboard

Most ships keep a small reserve in the bridge spares locker. One spare reset button per console, one motion sensor, and a set of fuses cover most common failures. Larger items like controllers are usually ordered when needed rather than held in stock.

Frequently Asked Questions

Can a BNWAS run with a failed motion sensor?

Yes, in manual mode. The system reverts to button-only reset until the sensor is replaced. Class surveyors accept this as a temporary condition but expect repair within a defined window.

How long do BNWAS reset buttons typically last?

Most last five to eight years under normal bridge use. Heavy-traffic ships replace them sooner. Premature failure usually means a wiring fault or a faulty batch.

Are software memory cards swappable between identical units?

Sometimes. Some models tie firmware to the controller serial number and require an OEM-issued unlock. Confirm with the supplier before ordering a card-only replacement.

Find BNWAS Spare Parts Suppliers Near You

The directory below sorts vendors by port and brand coverage. Match supplier inventory to the BNWAS models on your ships before placing the first order.

  • SEASTAR (HK) TRADE LIMITED logo

    Year Founded: 2018

    Verified
    SEASTAR (HK) TRADE LIMITED
    Verified

    providing original spare parts for main engines, auxiliary machinery, engine room equipment, and deck auxiliary systems to domestic and international shipowners and management companies. competitive pricing Our global service network and professional logistics team ensure timely delivery of your spare parts to designated ports and destinations. Heat Exchanger Galley Equipment Electric motor Deck Crane Grab Windlass Mooring Winch Hatch Cover Gangway Ladder Winch Steering Gear Pintle Bush Synthetic Phenol Resin Valve Fire Alarm Detector Navigation Communication Equipment Water Ingress Alarm System Electrical Instrument and Automation Fuel Valve Test Device Main Engine Auxiliary Engine Turbocharger Air Compressor M/E Auxiliary Blower Pumps Boiler Incinerator Fresh Water Generator Oily-water Separator Sewage Water Treatment Plant 15ppm Bilge Alarm Fuel Oil supply Module Purifier Refrigeration and Air Conditioning

    supply@seastartrade.com

    CATEGORIES:

    • BNWAS (Bridge Navigational Watch Alarm Systems)

    • 15 PPM Monitoring Equipment

    • AIS (Automatic Identification Systems)

    • AMS (Alarm Monitoring Systems)

    • ARPA (Automatic Radar Plotting Aids)

      (+195)

    BRAND:

    • Daniamant

    • MARINELEC

    • Jinbo

    • BI Industrial

    • SM Electrics

      (+18)

    CLASS APPROVED:

    IACS: ABS, ClassNK, CCS, BV

    WAREHOUSES:

    • China

  • Japan Marine (S) Pte ltd logo

    Year Founded: 2011

    Verified
    Verified

    We have listed our Key Strength Equipments as below for easy reference. We are strong in Main engines Aux Engines /Generators Compressors Main Air , Breathing , Refrigeration, Marine Pumps Purifiers /Separator Hatch Cover Spares / Hydraulic spares Electrical Hydraulic Motors Air horns Toilet Vacuum Systems Electrical spares and small components A/C Compressors HVAC system spares Boiler and Incinerators https://jmsgroup.jp/products/

    jmsgroup.jp
    operations@jmsgroup.jp

    CATEGORIES:

    • BNWAS (Bridge Navigational Watch Alarm Systems)

    • 15 PPM Monitoring Equipment

    • AIS (Automatic Identification Systems)

    • AMS (Alarm Monitoring Systems)

    • ARPA (Automatic Radar Plotting Aids)

      (+177)

    BRAND:

    • Daniamant

    • MARINELEC

    • Jinbo

    • BI Industrial

    • SM Electrics

      (+18)

    CLASS APPROVED:

    IACS: DNV

    WAREHOUSES:

    • Singapore

    • Angola

    • Austria

    • Australia

    • Bangladesh

      (+209)

  • ARK MARINE SERVICE INC. logo

    Year Founded: 2004

    Verified
    Verified

    We specialize in providing original equipment supplies, primarily for main and auxiliary engine spares. As a factory-based company, we ensure the best pricing without compromising on quality. Our dedicated logistics team handles all deliveries efficiently, offering competitive rates for air, sea, and courier services.

    CATEGORIES:

    • BNWAS (Bridge Navigational Watch Alarm Systems)

    • 15 PPM Monitoring Equipment

    • AIS (Automatic Identification Systems)

    • AMS (Alarm Monitoring Systems)

    • ARPA (Automatic Radar Plotting Aids)

    • AUS (Automatic Unloading Systems)

    • Accommodation Ladder Davits

    • Accomodation Ladders & Gangways

    • Air Compressors

    • Air Driven Motors

    • Air Horns

    • Air Reservoirs

    • Air Starters

    • Alpha Lubrication Systems

    • Anemometers

      (+162)

    CLASS APPROVED:

    IACS: ClassNK, BV

  • MARINE INDUSTRIAL GROUP LIMITED logo

    Year Founded: 2025

    Verified
    Verified

    SUPPLIER OF OEM , ORIGINAL , OR SECOND HAND OF MARINE PARTS -Marine oil Lubricants -Marine Engines -Pumps -Main Engine -Auxiliary Engine/Generator -Engine Spares -Propeller -Hydraulics -Pumps Spares -Oil Purifier Spares -Heat Exchanger -Air Compressors Spares -Turbo Chargers Spares Marine Industrial Group: Excellence in Marine Solutions With a commitment to superior service and quality products, Marine Industrial Group is your go-to source for marine engineering supplies. We specialize in ship spare parts and auxiliary systems. MIG- Marine Industrial Group Limited

    CATEGORIES:

    • BNWAS (Bridge Navigational Watch Alarm Systems)

    • 15 PPM Monitoring Equipment

    • AIS (Automatic Identification Systems)

    • AMS (Alarm Monitoring Systems)

    • ARPA (Automatic Radar Plotting Aids)

    • AUS (Automatic Unloading Systems)

    • Accommodation Ladder Davits

    • Accomodation Ladders & Gangways

    • Air Compressors

    • Air Driven Motors

    • Air Horns

    • Air Reservoirs

    • Air Starters

    • Alpha Lubrication Systems

    • Anemometers

      (+166)

    WAREHOUSES:

    • Hong Kong

  • SYMCOM MARINE logo

    Year Founded: 2021

    Verified
    Verified

    Symcom Marine is your comprehensive partner for all on-site maritime service needs. We offer a single point of contact for essential services, including spare parts supply, on-board radio surveys, and equipment installation and repair. With 12 years of dedicated service in the maritime industry, we have built a reputation for excellence, earning the satisfaction and sustained support of over 100 clients globally. Their continued trust and business are the best testament to the high qualityofourservice At Symcom Marine, we simplify your operations. We provide a complete suite of maritime services at a single location, ensuring efficiency for every vessel. This includes swift spare parts supply, precise on-board radio surveys, and expert installation and repair. Symcom Marine 12 years of industry trust and 100 satisfied clients, we provide the quality service your fleet de serves/ From spare parts and radio surveys to expert repair and installation, we deliver complete on-board support,

    CATEGORIES:

    • BNWAS (Bridge Navigational Watch Alarm Systems)

    • ECDIS (Electronic Chart Display Information Systems)

    • Echo Sounder

    • GMDSS (Global Maritime Distress Safety Systems)

    • VSAT (Very Small Aperture Terminal)

    • VHF (Very High Frequency)

    • VDR (Voyage Data Recorder)

    • Speed Log

    • Rudder Angle Indicators

    • Navigation Equipment

    • Navigation & Dynamic Positioning Systems

    • LRIT (Long Range Identification Tracking)

    • Gyro Stabilizers

    • GPS (Global Positioning Systems)

    • Fuel Pumps & Plunger Barrel

      (+5)

    WAREHOUSES:

    • United Arab Emirates

    • India

  • NEW CHANNEL CHINA INTERNATIONAL CO LTD logo

    Year Founded: 2010

    RM verified
    RM verified

    SHIP SPARE PARTS, SHIP EQUIPMENT, ALTERNATIVE SOLUTIONS, SHIP REPAIR, INSPECTION SERVICES, SHIP REPAIR BROKER, OFFSHORE EQUIPMENT, CONSUMERABLES, PROVISIONS, ON-SITE SUPPLY SERVICE PROVIDER, TECHNICAL TEAM FOR ASSISTANCE

    CATEGORIES:

    • BNWAS (Bridge Navigational Watch Alarm Systems)

    • 15 PPM Monitoring Equipment

    • Accommodation Ladder Davits

    • Accomodation Ladders & Gangways

    • Air Compressors

    • Air Driven Motors

    • Air Horns

    • Air Reservoirs

    • Air Starters

    • AIS (Automatic Identification Systems)

    • Alpha Lubrication Systems

    • AMS (Alarm Monitoring Systems)

    • Anemometers

    • Anti-Heeling Systems

    • ARPA (Automatic Radar Plotting Aids)

      (+166)

    CLASS APPROVED:

    IACS: ABS, RINA, ClassNK, CCS, BV, CRS, PRS, KR, LR, DNV, IRS

    Non-IACS: RMRS, HRS, Other

  • Umam Marine Tech logo

    Year Founded: 2026

    Supplier of Ship Engine and its spares, Marine Automation and Navigation equipments.

    umammarinetech.com
    umammarinetech@gmail.com

    CATEGORIES:

    • BNWAS (Bridge Navigational Watch Alarm Systems)

    • 15 PPM Monitoring Equipment

    • BWTS (Ballast Water Treatment Systems)

    • Communication Equipment

    • Compass (Gyro & Magnetic)

    • Diesel Generators

    • ECDIS (Electronic Chart Display Information Systems)

    • Echo Sounder

    • Engines (2-Stroke)

    • AIS (Automatic Identification Systems)

    BRAND:

    • Elcome

    • Skipper

    • KONGSBERG

    • HYUNDAI HEAVY INDUSTRIES LTD

    • TOKYO KEIKI

      (+2)

    WAREHOUSES:

    • India

  • MARINE SEALINK B.V. logo

    Year Founded: 2025

    Specialized Marine Spare Parts Providing high-quality replacement parts, precision instrumentation, and comprehensive supply solutions for vessel automation, safety, and environmental compliance systems worldwide. Electrical Spar

    CATEGORIES:

    • BNWAS (Bridge Navigational Watch Alarm Systems)

    • 15 PPM Monitoring Equipment

    • Air Compressors

    • Air Driven Motors

    • Air Horns

    • Air Starters

    • AMS (Alarm Monitoring Systems)

    • Automation Control Equipment & Control Units

    • BackWash Filters

    • BWTS (Ballast Water Treatment Systems)

    WAREHOUSES:

    • Netherlands

  • Ship Navigation Communication automation System logo

    Year Founded: 2026

    SAIRA MARITIME SERVICE We specialize in the sales, supply, repair, and service of new, used, and refurbished marine navigation, communication, and automation equipment for all types of vessels. Products: Radar, GPS, ECDIS, AIS,

    CATEGORIES:

    • BNWAS (Bridge Navigational Watch Alarm Systems)

    • Autopilot

    • Automation Control Equipment & Control Units

    • AIS (Automatic Identification Systems)

    • Communication Equipment

    • Compass (Gyro & Magnetic)

    • ECDIS (Electronic Chart Display Information Systems)

    • Echo Sounder

    • HF/MF SSB Radios

    • GMDSS (Global Maritime Distress Safety Systems)

    WAREHOUSES:

    • Bangladesh

  • WAVETECH MARINE logo

    Year Founded: 2017

    Supplier of Reconditioned Marine Equipment:- We specialize in sourcing and supplying quality used and reconditioned marine electronics, including radar, navigation, and engine control equipment. Serving ship repairers and management companies across India and the UAE, we offer cost-effective solutions without compromising reliability.

    CATEGORIES:

    • BNWAS (Bridge Navigational Watch Alarm Systems)

    • AIS (Automatic Identification Systems)

    • 15 PPM Monitoring Equipment

    • Automation Control Equipment & Control Units

    • Autopilot

    • BWTS (Ballast Water Treatment Systems)

    • Boiler Automation Equipment

    • Compass (Gyro & Magnetic)

    • DGPS (Differential GPS)

    • ECDIS (Electronic Chart Display Information Systems)

      (+19)

    BRAND:

    • Daniamant

    • MARINELEC

    • Jinbo

    • BI Industrial

    • SM Electrics

      (+18)

    WAREHOUSES:

    • India

    • United Arab Emirates

    • Greece

    • Indonesia

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Records Marine is operated by RECORDS MARINE — FZCO (Dubai, UAE), Trade Licence No. 60836. The platform IP is owned by RECORDS MARINE IP HOLDINGS LTD (ADGM, No. 27123).

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