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NASA Marine Speed Log Dummy Impellor Unit Blanking Plug Clipper Target Cruiser

NASA Marine Speed Log Dummy Impellor Unit Blanking Plug Clipper Target Cruiser

£13.44 GBP
£53.44 GBP £13.44 GBP
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NASA Marine Speed Log Dummy Plug

Essential Maintenance Blanking Unit (PL-DUMMY)

The NASA Marine Speed Log Dummy Impellor Unit (Part Number: PL-DUMMY) is a critical accessory for any vessel equipped with NASA speed logs. This blanking plug is designed to be inserted into the skin fitting housing whenever the active paddlewheel transducer is removed for cleaning or during long periods of inactivity.

PREVENT FOULING: By sealing the bore, this unit prevents barnacles, weed, and other marine growth from establishing themselves inside the transducer housing, ensuring your log remains accurate and easy to service.

Key Features

  • ✔ Official NASA Marine replacement part
  • ✔ Direct fit for standard 42mm NASA skin fittings
  • ✔ UV-stabilized high-grade plastic construction
  • ✔ Dual O-ring seal compatibility (Seals included)

Technical Specs

Manufacturer NASA Marine
Part Number PL-DUMMY
Fitting Diameter ~42mm (Standard)
Material Nylon / Plastic
Color Black

Compatibility / Fitment Guide

NASA System Range Model Type Notes
Clipper Series Clipper Speed / Log / Duet Fits standard 42mm housing
Target Series Target Log / Speed Direct replacement
Cruiser Series Cruiser Log Standard fitting

OEM Cross Reference

NASA Marine MPN PL-DUMMY
Cactus Order Code ZNASPL-DUMMY

Questions & Answers

Is this a genuine original part?

Yes, this is an authentic NASA Marine Instruments spare part, manufactured in the UK to the exact dimensions of your original equipment.

How do I know if it is compatible?

This plug fits all NASA speed log transducers that use the standard 42mm skin fitting. This includes the Clipper, Target, and Cruiser instrument ranges.

Does this fit the Electromagnetic (EML-3) logs?

No, this specific part is designed for the standard paddlewheel log transducers. The electromagnetic logs use a different blanking plug (MPN: EML-TR-BLANK).

Note: Always ensure the O-rings are lubricated with silicone grease before inserting the dummy plug to ensure a watertight seal and easy removal.

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