#   Nairn Replacement Marine Drain Plug – Boat Plumbing Fittings   400356

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    $7.34  each

            Brand: [Nairn Boat Inspection Ports & Spare Parts](https://www.rhsboating.com.au/brands-listing/nairn-boat-inspection-ports-spare-parts.html)

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    ### Nairn Replacement Drain Plug

Replace the plug in a Nairn 400355 drain assembly without selecting a complete new housing. This replacement is identified specifically for that assembly, making the existing housing code the key buying check.

Inspect the housing and its thread before ordering, and confirm that the installed fitting is 400355. A similar appearance or an approximate diameter does not establish an interchangeable thread. This is the replacement plug listing, so retain the distinction between the plug and a complete drain-plug-and-housing assembly.

### Choosing and using this product

When comparing alternatives, use the specified material and intended application rather than assuming every marine fitting is suitable for every liquid. Keep the part reference with the plumbing records so future spares can be matched to the connection actually installed.

This is a targeted replacement purchase, so keep the parent equipment reference beside the part number while checking the order. If several similar assemblies are fitted aboard, identify the relevant position as well. That distinction helps ensure the part is ordered for the equipment actually being serviced.

Plan the connection from the system outward: identify the fluid application, mating thread or hose size, and the space available for the fitting. A nominal pipe-thread size is a separate measurement from a hose diameter, so compare the correct dimension at each connection.

Keep service points accessible and follow the relevant system instructions for fastening, sealing and hose support. Avoid forcing a hose or thread to compensate for an unsuitable fitting. Confirm the finished connection and normal system operation before putting the installation back into use.

Check the stated contents when putting together the plumbing run. A fitting-only listing does not necessarily include hose, clamps, seals or a mounting assembly. Lay out the required connections before installation so the finished arrangement can be checked as a whole.

### Product details

- Replacement drain plug to suit 400355.
- Product code: 400356