Keys22 UM400

Keys22 Replacement Keys for Herman Miller File Cabinet

Model: UM400

Introduction

This manual provides instructions for the Keys22 replacement keys designed for Herman Miller file cabinet office furniture. These keys are precisely cut to match specific lock codes ranging from UM351 to UM427. The purpose of this document is to guide you through identifying the correct key, its proper use, and general care.

Two Keys22 replacement keys for Herman Miller file cabinets, with a tag indicating the key code.

Image: Two Keys22 replacement keys, typically supplied in a pair, for use with Herman Miller file cabinets. Each key is cut to a specific code, such as UM400, to ensure compatibility with the corresponding lock.

Setup: Identifying Your Key Code

Before using your replacement keys, it is crucial to verify that you have received the correct key code for your lock. Keys22 replacement keys are cut to fit specific lock numbers from UM351 to UM427.

  1. Locate the Lock Number: Examine your Herman Miller file cabinet lock cylinder or your original key. The key code (e.g., UM400) is typically stamped directly on the lock face or on the original key itself.
  2. Match the Code: Ensure the code on your new Keys22 replacement key matches the code found on your lock or original key. These keys are not master keys; they are cut to a specific individual lock code.
  3. Verify Quantity: Each order includes two replacement keys. Confirm you have received both keys.

Operating Instructions

To operate your Herman Miller file cabinet lock with the Keys22 replacement key, follow these steps:

  1. Insert the Key: Gently insert the replacement key into the keyway of the file cabinet lock. Do not force the key.
  2. Turn to Lock/Unlock: Turn the key clockwise to lock the cabinet or counter-clockwise to unlock it. The key should turn smoothly without excessive resistance.
  3. Remove the Key: Once the cabinet is locked or unlocked, return the key to its original insertion position (usually vertical) before carefully removing it from the lock.

If the key does not turn smoothly, refer to the Troubleshooting section.

Maintenance

Proper maintenance ensures the longevity and smooth operation of your Keys22 replacement keys and your file cabinet lock.

  • Keep Keys Clean: Periodically wipe the keys with a soft, dry cloth to remove dirt or debris. Avoid using harsh chemicals or abrasive materials.
  • Lubrication (Optional): If the lock mechanism feels stiff, a small amount of graphite lubricant (powdered graphite) can be applied to the key or directly into the keyway. Avoid oil-based lubricants as they can attract dust and grime.
  • Storage: Store spare keys in a safe, dry place to prevent loss or damage.

Troubleshooting

If you encounter issues with your Keys22 replacement keys, consider the following:

  • Key Does Not Insert Fully:
    • Ensure the key is oriented correctly.
    • Check for any obstructions in the lock's keyway.
    • Verify that the key code matches your lock.
  • Key Inserts but Does Not Turn:
    • Confirm the key code matches your lock. An incorrect code will prevent the key from turning.
    • Apply gentle pressure while turning. Do not force the key, as this can damage the key or the lock.
    • Consider applying a small amount of graphite lubricant to the lock mechanism.
  • Key Feels Loose or Wobbly:
    • This may indicate wear on the key or the lock cylinder. If the key is new, re-verify the key code.

If problems persist after following these steps, contact Keys22 customer support for further assistance.

Specifications

FeatureDetail
BrandKeys22
Model NumberUM400 (Part of UM351-UM427 series)
MaterialMetal
Recommended UseHerman Miller Office Furniture (File Cabinets)
StyleModern
ColorGold
Number of Pieces2 Replacement Keys
Item Weight0.563 ounces
Package Dimensions4.13 x 2.48 x 0.16 inches
UPC716053314109

Warranty and Support

Specific warranty information for Keys22 replacement keys is not provided in the product data. For details regarding warranty coverage, returns, or technical support, please contact Keys22 directly through their official channels or the retailer from whom the product was purchased.

For general inquiries or assistance, refer to the contact information provided by Keys22 or the seller.

© 2026 Keys22. All rights reserved.

Ask a question about this manual

Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.