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maritime DC & PPE Information Center
personnel protection

Ring Buoy Tip 006

Distress Marker Light  (ACR model SM-2)

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The ACR model SM-2 distress marker light for the ring buoy needs to use a 6 volt  battery  with screw type terminals, and weighs no more than 1.49 pounds.   The battery, NSN 6135-01-020-1967, provides the only known battery, Rayovac battery model 945 that meets these requirements.   If a heavier battery is used, the light will sink.  The distress marker light is compliant with USCG 161.010 and UL 1196 standards.  The battery is a local purchase item.



NSN 6230-01-143-4778                                              NSN 6135-01-020-1967