Arlington Industries All-Plast...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
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Arlington Industries All-Plastic Snap-In Knockout Bushings

Arlington Industries All-Plastic Snap-In Knockout Bushings - Black UL/CSA Listed Professional Grade

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Model: 4404

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

$0.99
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Arlington Industries All-Plastic Snap-In Knockout Bushings

Professional snap-in protection for electrical knockout applications

Arlington Industries All-Plastic Snap-In Knockout Bushings deliver reliable protection and professional installation convenience for electrical knockout applications. These black plastic bushings feature UL and CSA listings for code compliance and are manufactured in the United States with quality plastic construction for dependable performance in electrical enclosures and panels.

Professional Features & Benefits

  • All-Plastic Construction: Durable plastic material provides excellent insulation properties and corrosion resistance for long-lasting protection.
  • Snap-In Design: Quick and secure installation without additional hardware or complex mounting procedures.
  • UL and CSA Listed: Meets rigorous safety standards for professional electrical installations and code compliance.
  • Black Finish: Professional appearance that blends seamlessly with standard electrical enclosures and equipment.
  • USA Manufacturing: Quality construction with reliable domestic production standards and consistent availability.
  • Knockout Protection: Prevents wire damage and provides smooth entry points for conductors through panel knockouts.

Technical Specifications

  • Color: Black
  • Country Of Origin: United States
  • Listing: UL, CSA
  • Material S : Plastic

Professional Applications

  • Electrical Panel Installations
  • Control Cabinet Wiring
  • Industrial Enclosure Applications
  • Commercial Electrical Systems
  • Residential Service Panels
  • Equipment Enclosure Protection
  • Professional Electrical Contracting

Why Choose Arlington Industries Quality?

Arlington Industries knockout bushings combine UL and CSA safety listings with reliable USA manufacturing for consistent professional performance. The durable plastic construction and snap-in convenience deliver dependable protection for electrical knockout applications across residential, commercial, and industrial installations.

Manufacturer Resources

Product Specs

Country Of Origin:
United States
Listing:
UL, CSA
Department:
Electrical
Product Type:
Bushing
Product Category:
Conduit Fittings
Product Color:
Black
Product Material:
Plastic
Product Group:
Conduit Fittings

Arlington Industries 4404 – Frequently Asked Questions

1) What trade sizes do Arlington snap-in knockout bushings come in?
Arlington's all-plastic snap-in knockout bushings run seven trade sizes: 1/2 inch (4400), 3/4 inch (4401), 1 inch (4402), 1-1/4 inch (4403), 1-1/2 inch (4404), 2 inch (4405) and 2-1/2 inch (4406). Match the bushing to the trade size of the knockout or conduit, not to the wire. Ordering across a panel build usually means stocking two or three sizes, since a typical load center mixes 1/2 and 3/4 inch knockouts with a larger feeder opening.
2) Do these snap-in bushings need a locknut or any other hardware to install?
No extra hardware. The bushing snaps into the knockout and holds itself there, so there's nothing to thread on from the back side of the panel. That's the practical reason electricians reach for them over a threaded insulating bushing: you can set one in a live-adjacent enclosure or a tight gutter with one hand, from the front, without fishing a locknut behind a bundle of conductors.
3) Will a plastic snap-in bushing pass inspection, or does the inspector want a metal one?
These bushings are UL and CSA Listed, which is what an inspector is checking for on an insulating bushing. Plastic is the normal material for this part, since the whole job is insulating the sharp edge of a knockout so conductors don't get cut. The one thing to know: an insulating bushing is not a connector. It protects the opening where cable or conductors pass through, but it doesn't clamp or secure the wiring method, so it doesn't replace a listed cable connector where one is required.
4) Can I use these to fill unused knockouts in an electrical panel?
Not for that. A bushing has an open center, it's there to line an opening that conductors pass through and keep the raw metal edge off the insulation. An unused knockout has to be closed with a knockout seal or plug rated for the job. Use the Arlington 4400 series only where something is actually going through the hole.
5) What's the difference between a snap-in knockout bushing and a threaded insulating bushing?
A threaded insulating bushing screws onto the end of a conduit or a connector that's already through the wall of the box. The Arlington snap-in type goes directly into an open knockout with no threads involved, so it's the one you want when the knockout is empty and you're just running conductors or a cable through it. If you have a conduit stub sticking into the enclosure and you need to cap that thread, that's a threaded bushing job, not this part.
6) Will black bushings look out of place in a panel or gutter?
Black is the standard color for this part and reads as normal in any load center, control cabinet or wireway. The whole Arlington snap-in range here is black, so a facility standardizing on one bushing across every trade size gets a consistent look, which is what a property manager or maintenance super wants when several crews are working the same building.
How fast can I get the Arlington Industries 4404 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 Arlington Industries 4404 come with a warranty?
Absolutely. The Arlington Industries 4404 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 Arlington Industries 4404?
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 Arlington Industries 4404 from ZenSupply?
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