Arlington Industries 4491 Non-...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$21.63
Arlington Industries 4491 Non-Metallic Insulating Bushing with Insulated Throat, 5" Trade Size

Arlington Industries 4491 Non-Metallic Insulating Bushing with Insulated Throat, 5" Trade Size

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Model: 4491

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

$21.63
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Arlington Industries Non-Metallic Insulating Bushing with Insulated Throat, 5" Trade Size

The Arlington Industries non-metallic insulating bushing is engineered for the 5" trade size, designed to thread onto the end of conduit runs and protect conductor insulation as wires pass through the fitting. Molded from durable, non-conductive plastic, this insulating bushing features an insulated throat that shields cable jacketing from abrasion against sharp conduit edges during and after installation. Because the body is non-metallic, this bushing provides electrical isolation at the conduit termination point rather than conducting current the way a metallic bushing would. Electrical contractors specify insulating bushings like this one to help protect wire insulation and maintain a clean, code-compliant conduit termination in commercial and industrial electrical systems.

Key Features

  • Trade Size: Sized for the 5" trade size conduit, providing a secure thread-on fit at the conduit termination point.
  • Durable Construction: Non-metallic, plastic body resists corrosion and will not conduct electrical current, unlike metallic bushing alternatives.
  • Insulated Throat: The insulated throat design guards conductor insulation from cuts and abrasion as wires are pulled through the conduit end.
  • Threaded Bushing: Installs directly onto threaded conduit ends for a quick, tool-friendly connection.
  • Electrical Isolation: The non-conductive plastic body helps isolate the conduit end and prevents metal-to-metal contact at the termination point.
  • Corrosion Resistant: Non-metallic plastic construction will not rust or corrode, unlike steel or malleable iron bushings.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Conduit Terminations and Raceway Systems
  • Panelboard and Enclosure Wiring
  • Commercial and Industrial Electrical Installations
  • Renovation and New Construction Projects
  • Motor and Equipment Conduit Terminations
  • Service Entrance and Panelboard Conduit Runs

Why Arlington Industries?

Arlington Industries builds this insulating bushing from non-metallic, non-conductive plastic for dependable performance at the 5" trade size. The insulated throat design helps protect conductor insulation from damage at the conduit end, supporting safer, longer-lasting wiring installations for electrical professionals. Built to the 5" trade size, this insulating bushing gives contractors a non-metallic option for terminations where electrical isolation and abrasion protection are priorities.

Manufacturer Resources

Product Specs

list_batch:
ARL-20260918
Product Type:
Conduit Bushing
Department:
Electrical
Product Group:
Conduit & Raceway
Product Subgroup:
Conduit Fittings
Product Material:
Non-Metallic
Product Size:
5"
Product Color:
Gray
Product Height:
6.295 in
Product Width:
0.976 in

Arlington Industries 4491 – Frequently Asked Questions

1) What size conduit does the Arlington 4491 insulating bushing fit?
The Arlington 4491 is made for 5 inch trade size conduit. It threads onto the end of a 5 inch threaded conduit termination, so it will not work on any other trade size; order the matching size for smaller runs.
2) Is the Arlington 4491 bushing metal or plastic, and does that matter for grounding?
It is a non-metallic, molded plastic body. That means it does not conduct current and provides electrical isolation at the conduit termination instead of carrying bonding the way a metallic bushing would. If your installation relies on the bushing itself for a bonding path, you need a metallic grounding bushing, not this one.
3) What does the insulated throat on a plastic conduit bushing actually do?
The insulated throat on the Arlington 4491 gives conductors a smooth, rounded surface to ride over at the conduit end, so cable jacketing is not cut or abraded against the sharp cut edge of the raceway during the pull or from vibration afterward.
4) What part number do I order for the Arlington 5 inch non-metallic bushing?
Arlington Industries part number 4491 is the 5 inch non-metallic insulating bushing. That is the manufacturer number to quote, and it is a single configuration, so there are no finish or material options to specify.
5) Can I use the Arlington 4491 in a damp or corrosive area?
The plastic body will not rust or corrode the way steel or malleable iron bushings do, which is the usual reason contractors pick a non-metallic bushing for wash-down areas, mechanical rooms, and similar environments. It is a bushing, not a seal, so it does not make the termination watertight.
6) Where is a 5 inch insulating bushing typically used on a job?
Large trade sizes like this show up at service entrance and panelboard conduit runs, enclosure and panelboard terminations, and motor or equipment feeds, anywhere a big conduit stub lands and the conductors need protection at the edge.
7) Do I need any tools or extra parts to install this bushing?
No extra hardware is required. The 4491 threads directly onto a threaded 5 inch conduit end by hand, so it is a quick termination with no locknut set or adapter needed beyond what is already on the raceway.
How fast can I get the Arlington Industries 4491 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 4491 come with a warranty?
Absolutely. The Arlington Industries 4491 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 4491?
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 4491 from ZenSupply?
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