Milbank Steel Hole Seal ANSI 6...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$25.63
$22.19
Milbank Hole Seal Non UL Listed ANSI 61 Gray Steel Gasketed Wing Nut

Milbank Steel Hole Seal ANSI 61 Gray with Rubber Gasket and Wing Nut

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Model: A-HS200

In Stock (leaves warehouse same day if ordered before 3pm ET)

$25.63
$22.19
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Milbank Steel Hole Seal ANSI 61 Gray with Rubber Gasket and Wing Nut

Professional Enclosure Sealing Solution

The Milbank Steel Hole Seal provides reliable enclosure protection with ANSI 61 Gray steel construction and integrated rubber gasket. This professional-grade hole seal features convenient wing nut installation for secure closure of unused openings in electrical enclosures, ensuring proper environmental protection and code compliance.

Professional Features & Benefits

  • Steel Construction: Durable steel material provides long-lasting performance and corrosion resistance in demanding electrical applications.
  • ANSI 61 Gray Finish: Standard industrial gray coating ensures professional appearance and compatibility with most electrical enclosures.
  • Rubber Gasket Seal: Integrated gasket provides reliable weatherproof seal to prevent moisture and debris infiltration.
  • Wing Nut Design: Tool-free installation and removal with convenient wing nut fastening system for easy field service.
  • 0.5 IN Profile: Compact design minimizes space requirements while maintaining effective sealing performance.
  • Enclosure Accessory Application: Purpose-built for professional electrical enclosure installations and modifications.

Technical Specifications

  • Application: Enclosure Accessory
  • Brand Name: Milbank
  • Departent: Electrical
  • Insulation: None
  • Knockouts: FALSE
  • Misc: Hole Seal and Rubber Gasket
  • Product Color: ANSI 61 Gray
  • Product Family Code: HOLBE
  • Product Length: 0.5 IN
  • Product Material: Steel
  • Product Type: Hole Seal
  • Unspsc Number: 39121321

Professional Applications

  • Electrical Panel Modifications
  • Enclosure Weatherproofing
  • Industrial Control Cabinets
  • Commercial Electrical Installations
  • Maintenance and Retrofit Projects
  • Code Compliance Applications

Why Choose Milbank Quality?

Milbank delivers professional-grade electrical components with steel construction and ANSI 61 Gray finish for reliable performance. The integrated rubber gasket and wing nut design ensure proper installation and long-term sealing effectiveness in demanding electrical environments.

Manufacturer Resources

Product Specs

Application:
Enclosure Accessory
Brand Name:
Milbank
Knockouts:
FALSE
Misc:
Hole Seal and Rubber Gasket
Product Family Code:
HOLBE
Product Length:
0.5 IN
Product Type:
Gland Plate & Entry Seal
Unspsc Number:
39121321
Product Color:
ANSI 61 Grey
Product Material:
Steel
Department:
Electrical
Product Subgroup:
Enclosure Accessories
Product Details:
Hole Seal
Product Group:
Boxes & Enclosures

Milbank A-HS200 – Frequently Asked Questions

1) Is the Milbank A-HS hole seal UL listed?
No. The Milbank steel hole seal is a non-UL-listed enclosure accessory. If your inspector or spec requires a listed closure plate for the enclosure you are patching, this is not the part to use.
2) Will this hole seal keep water out of an outdoor meter socket or exterior panel?
It ships with a rubber gasket that compresses between the steel plate and the enclosure wall, which is what blocks moisture and debris at an unused opening. Tighten the wing nut evenly so the gasket seats all the way around the hole. For a rain-exposed enclosure, seal from the outside face so water runs off the plate rather than collecting behind it.
3) Do I need tools to install the Milbank hole seal?
No tools required. The seal uses a wing nut you turn by hand, so a maintenance tech can close or reopen an unused knockout in the field without a driver or a nut runner. That also makes it practical on live panels where you want minimum time inside the cabinet.
4) How much does this hole seal stick out into the enclosure?
Half an inch. The stated product length is 0.5 IN, which is the depth of the assembly, so it clears most wiring gutters and does not crowd conductors behind the plate. The other two dimensions vary by size, from 1.188 inches square on the smallest up to 5.063 inches square on the largest.
5) Will the finish match my existing gray electrical enclosures?
The plate is finished in ANSI 61 Gray, the standard industrial gray used on most switchgear, meter sockets and control cabinets, so a patched opening will not stand out on a gray enclosure. On a white, beige or stainless enclosure it will read as a gray square.
6) Is this hole seal plastic or metal?
Steel, with a rubber gasket. That matters for anyone patching an industrial control cabinet or meter enclosure where a snap-in plastic plug would not hold up to heat or impact, and it keeps the enclosure wall metallic across the opening.
7) Does the Milbank A-HS hole seal come with its own knockouts I can open later?
No. It is a solid steel closure plate with no knockouts, so it permanently closes the opening until you back off the wing nut and remove it. If you expect to run a conduit through that hole later, the seal removes by hand and the knockout is open again.
How fast can I get the Milbank A-HS200 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Milbank A-HS200 come with a warranty?
Absolutely. The Milbank A-HS200 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Milbank A-HS200?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Milbank A-HS200 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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