Arlington Industries 458 Insulated Metal Grounding Bushing

Arlington Industries 458 Insulated Metal Grounding Bushing, 3-1/2" Die-Cast

The Arlington Industries 458 Insulated Metal Grounding Bushing is a 3-1/2" die-cast fitting engineered to protect conductors and provide a dependable ground path at conduit terminations. Constructed from rugged die-cast metal, this grounding bushing pairs mechanical strength with an insulated throat that shields wire insulation from abrasion as conductors pass through the conduit opening. Designed for use where rigid or IMC conduit enters an enclosure, panel, or box, the 458 bushing helps electricians maintain a secure, code-conscious bonding connection between the conduit system and the equipment ground. The solid metal body stands up to the rigors of commercial and industrial jobsites, while the insulated interior reduces the risk of costly conductor damage during pulls and terminations. Arlington Industries manufactures this 3-1/2" bushing for professionals who need a durable, metal-bodied grounding solution they can rely on for demanding conduit runs.

Key Features

• Trade Size: Sized for 3-1/2" conduit, allowing a precise, secure fit at rigid or IMC conduit terminations.
• Durable Die-Cast Construction: Made from solid die-cast metal for long-term mechanical strength and resistance to the wear and tear of jobsite handling.
• Insulated Throat: An insulated interior surface helps protect conductor insulation from nicks, cuts, and abrasion as wires are pulled through the conduit opening.
• Reliable Grounding Bushing: Provides a dependable bonding and grounding connection between the conduit system and the enclosure it terminates into.
• Solid Metal Body: Rugged metal construction is built to withstand the demands of commercial and industrial electrical installations.
• Arlington Model 458: Part of Arlington Industries' line of insulated metal grounding bushings sized to match standard 3-1/2" conduit systems.
• Professional-Grade Fitting: Designed for electricians and contractors who need a code-conscious bonding solution at conduit-to-enclosure connections.

Technical Specifications

• Refer to manufacturer documentation for complete technical specifications.

Typical Applications

• Conduit-to-Enclosure Grounding and Bonding Connections
• Rigid Metal Conduit (RMC) Installations
• Intermediate Metal Conduit (IMC) Installations
• Panelboard, Switchboard, and Enclosure Terminations
• Commercial and Industrial Electrical Systems
• New Construction and Conduit System Upgrades

Why Arlington Industries?

Arlington Industries engineers the 458 Insulated Metal Grounding Bushing from solid die-cast metal to deliver a durable, dependable fitting for demanding conduit terminations. The insulated throat design helps protect conductor insulation while the metal body provides the mechanical strength electricians expect from a professional-grade grounding bushing. Sized for 3-1/2" conduit, the 458 gives installers a reliable way to maintain proper bonding and grounding at every enclosure connection. Whether the application is a new commercial build-out or an industrial conduit upgrade, this die-cast bushing is built to perform under real jobsite conditions. Choose Arlington Industries for electrical fittings built to deliver consistent, code-conscious performance in commercial and industrial conduit systems.