Introduction
This manual provides instructions for the EasyKeys CompX National 242N Mailbox Replacement Key. It covers key identification, proper usage, and maintenance to ensure reliable operation and access to your mailbox.
Key Identification
Before ordering or using a replacement key, it is crucial to correctly identify your existing lock code and ensure compatibility. The EasyKeys 242N key is specifically designed for CompX National lock series 001N-400N.
Important: Verify that your lock code and manufacturer match the product title. This key is compatible with Florence mailboxes using the CompX National 242N lock.

Image Description: A detailed view of the brass replacement key, featuring the specific cut pattern for CompX National 242N locks. The key blank is NA12 D4292.

Image Description: This diagram illustrates common locations where you can find your lock code. These include directly on the original key, engraved on the lock face, on a label positioned inside or behind the lock mechanism, or on a label affixed to the cabinet or door itself. Always ensure the code matches the 242N specification.
Key Code Verification
To ensure you have the correct replacement key, locate the code on your existing key or lock. The code should be "242N".
- Order by Manufacturer: Lock codes are often manufacturer-specific. Even if codes appear similar, key cuts can vary significantly between brands.
- Key Cuts Differ: Always confirm the manufacturer (CompX National) and the specific code (242N) to guarantee proper fit and function.
Key Usage Instructions
This section provides general guidance for using your replacement key.
Inserting the Key
- Gently insert the EasyKeys 242N replacement key into the mailbox lock's keyway. Do not force the key.
- Ensure the key is fully seated within the lock cylinder.
Turning the Key
- With the key fully inserted, turn it clockwise or counter-clockwise (depending on your lock mechanism) to engage the lock or unlock the mailbox.
- If resistance is met, do not apply excessive force. Remove the key, check for obstructions, and reinsert.
Removing the Key
- Once the lock is in the desired position (locked or unlocked), return the key to its original insertion position (usually vertical or horizontal).
- Gently pull the key straight out of the lock.
Proper Operation
The EasyKeys 242N key is designed for smooth operation with compatible CompX National 242N mailbox locks.
- Always insert and remove the key straight to prevent bending or damage.
- Avoid using the key as a lever or prying tool.
- If the lock feels stiff, a small amount of graphite lubricant (not oil-based) can be applied to the keyway.
Key Care and Maintenance
Proper care will extend the life of your replacement key and ensure reliable access to your mailbox.
- Cleaning: Keep the key clean and free from dirt or debris. Wipe with a dry cloth if necessary.
- Storage: Store the key in a safe place where it will not be bent, scratched, or exposed to harsh chemicals.
- Avoid Damage: Do not use the key for purposes other than operating the intended lock. Bending or twisting the key can alter its cut and render it unusable.
Troubleshooting Common Issues
If you encounter difficulties using your EasyKeys 242N replacement key, consider the following:
Key Does Not Insert Fully
- Check for Obstructions: Inspect the keyway for any foreign objects or debris.
- Key Alignment: Ensure the key is oriented correctly before insertion.
- Wrong Key: Double-check that you are using the correct 242N key for your CompX National lock.
Key Inserts but Does Not Turn
- Lock Mechanism: The lock mechanism might be jammed or corroded. Try applying a small amount of graphite lubricant (not oil-based) into the keyway.
- Incorrect Key Cut: Although unlikely if the code matches, there might be a slight manufacturing variance. Re-verify the lock code.
- Lock Damage: The internal components of the lock might be damaged. In this case, the lock itself may need replacement.
Key Is Difficult to Remove
- Return to Neutral: Ensure the key is turned back to its original insertion position before attempting to remove it.
- Lubrication: A dry lock can sometimes make key removal difficult. Apply graphite lubricant.
Product Specifications
| Feature | Detail |
|---|---|
| Brand | EasyKeys |
| Model Name | 242N |
| Compatible Lock Series | CompX National 001N - 400N |
| Key Blank | NA12 D4292 |
| Material | Brass |
| Dimensions (L x W x H) | 0.5 x 0.5 x 1 inches |
| Item Weight | 4 ounces |
| Special Features | Custom Cut Key, Durable |
Warranty Information and Customer Support
For specific warranty details or if you require further assistance with your EasyKeys CompX National 242N Mailbox Replacement Key, please contact EasyKeys customer support.
Refer to the EasyKeys official website or your purchase documentation for the most current support contact information.
You can also visit the EasyKeys Store on Amazon for additional product information and support resources.
