Arlington NM903 Snap-in Knockout Bushing 1-1/4 in

Product Description

The ARLINGTON NM903 is a non-metallic snap-in knockout bushing designed to protect wire and cable as it passes through standard knockout openings in electrical enclosures, panels, and junction boxes. Made from black non-metallic material, this bushing installs without tools by snapping directly into a 1-1/4 inch knockout hole. It creates a smooth, finished edge that guards conductors against abrasion and insulation damage. Electricians and electrical contractors use this type of fitting during rough-in and finish work wherever a clean, code-compliant wire entry point is required.

The NM903 is suited for residential and light commercial electrical installations. It is commonly installed in load centers, sub-panels, junction boxes, and metal enclosures where a 1-1/4 inch trade-size knockout is present. The snap-in design speeds up installation compared to threaded fittings, making it a practical choice for high-volume rough-in work.

Key Features

• Snap-in installation requires no tools and no hardware
• Non-metallic construction resists corrosion in damp or treated-air environments
• Black color finish for a clean, uniform appearance in electrical enclosures
• Smooth inner edge protects wire and cable insulation from abrasion at knockout openings
• Fits standard 1-1/4 inch trade-size knockout openings

Compatibility

Designed as an OEM-style replacement and new-installation fitting for standard 1-1/4 inch trade-size knockout openings in residential and commercial electrical enclosures, panels, and junction boxes.

Installation Notes

Installation is performed by licensed electricians in accordance with the National Electrical Code (NEC). De-energize and lock out the enclosure before installing or replacing any fitting. Press the bushing firmly into the knockout opening until it snaps securely into place. Verify the bushing seats flush and that no sharp edges remain exposed before routing conductors through the opening.

Technical Specifications

• Trade Size: 1-1/4 inches
• Material: Non-Metallic
• Color: Black
• UPC: 018997540034

Standard Information

• Brand: ARLINGTON
• Manufacturer Part Number: NM903