Middle Atlantic 406-WH NM Cover Clip 400 - White

Overview

The Middle Atlantic 406-WH is a cover clip built for the NM 400 series of rack and equipment enclosures, finished in white to match light-colored rack systems and blend into finished spaces such as classrooms, conference rooms, and retail back-offices. It's a small hardware component, but on any rack build the cover clips are what hold panel covers flush and secure — get the wrong clip and covers rattle loose or won't seat at all. The 406-WH is TAA compliant, which matters directly for integrators bidding government, education, or other federally funded contracts where Trade Agreements Act sourcing is a hard requirement rather than a nice-to-have.

Key Features

• White finish: matches Middle Atlantic's white-finish NM enclosures and covers, so the clip disappears into the installation instead of showing as a mismatched fastener in a visible rack room.
• Sized for the NM 400 series: the 406-WH is built to work with Middle Atlantic's NM 400 enclosure line, keeping cover panels seated and secure without introducing a fastener that doesn't match the rest of the run.
• TAA compliant: clears Trade Agreements Act sourcing rules, which keeps this clip usable on GSA schedule jobs and other federally funded installs where non-compliant hardware would force a substitution mid-project.

Integration & Compatibility

The 406-WH is a component part of the Middle Atlantic catalog, intended for use with NM 400-series enclosures rather than as a standalone accessory. If you're speccing a full rack build, pair it with the broader rack enclosures line and check a rack planning guide before finalizing hardware counts — clip and cover part numbers need to match the specific enclosure series to fit correctly. For runs that also carry active network gear, confirm cover clip color and finish against any network switches or patch hardware going in the same bay so the finished elevation reads consistently.

Frequently Asked Questions

Q: What enclosure series does the 406-WH fit?

A: The 406-WH is built for Middle Atlantic's NM 400 series of enclosures.

Q: What color is the 406-WH?

A: White, to match Middle Atlantic's white-finish NM enclosures and covers.

Q: Is the 406-WH TAA compliant?

A: Yes, the 406-WH is TAA compliant.

Q: Is the 406-WH sold as a single clip or a set?

A: Quantity and packaging details aren't specified in available product data — confirm pack count before ordering for a multi-cover run.

Marty Allison

The 406-WH (often searched as 406 WH) is a small part, but it's the kind of small part that stalls a rack build if you order the wrong one. It's a cover clip for Middle Atlantic's NM 400-series enclosures, finished white.

Technical Highlights:

• White finish: matches white NM 400-series enclosure covers so the hardware doesn't stand out on a finished elevation.
• NM 400 series fit: designed against Middle Atlantic's NM 400 enclosure line rather than a universal fit, so it needs to match your enclosure series.
• TAA compliant: keeps this part usable on GSA and other federally funded jobs without a last-minute hardware substitution.

Deployment Considerations:

• Confirm you're ordering against an NM 400-series enclosure before adding the 406-WH to a BOM — cover clips are series-specific and don't cross over to other Middle Atlantic enclosure families.
• Published data doesn't specify pack quantity or dimensions for the 406-WH, so verify quantity per order if you're covering a multi-bay run.

Good fit for a white-finish NM 400 rack build in a visible space — classroom AV closet, conference room rack, or retail back-office — where a mismatched or loose cover clip would be the one detail that gives away a rushed install.