Southwire N-300400 Conduit Nipple 3 X 4 Inch Galvanized

Product Description

The SOUTHWIRE N-300400 is a galvanized steel conduit nipple designed to extend threaded rigid or IMC conduit runs. Measuring 3 inches in trade size and 4 inches in length, this nipple provides a short, threaded section used to bridge two fittings, enclosures, or conduit bodies in an electrical installation. Fabricated from galvanized steel, it offers corrosion resistance and durability suitable for demanding job site conditions. Licensed electricians install this fitting as part of standard rigid metal conduit or IMC systems in both new construction and retrofit work.

This conduit nipple is suited for use in residential, commercial, and light industrial electrical installations where rigid metal conduit or IMC is the specified raceway system. The 3-inch trade size accommodates larger conductor fill requirements typical in feeder and service entrance applications. Its threaded ends mate directly with standard conduit couplings, junction boxes, and enclosures, making it a straightforward drop-in fitting during conduit rough-in.

Key Features

• Galvanized steel construction provides corrosion resistance for indoor and outdoor conduit systems
• 3-inch trade size x 4-inch length suits short offset and close-nipple applications
• Threaded ends compatible with standard rigid metal conduit and IMC fittings and enclosures
• UL Listed for use in code-compliant electrical installations

Compatibility

Designed as an OEM-style fitting for use with 3-inch rigid metal conduit and IMC systems following standard ANSI threading specifications.

Installation Notes

Installation is performed by a licensed electrician in accordance with applicable NEC requirements. De-energize all circuits in the affected raceway before beginning conduit work. Use a pipe wrench or strap wrench to thread the nipple hand-tight first, then wrench-tighten to ensure a secure, continuous ground path through the metallic raceway system. Inspect threads for damage before installation to ensure a proper seal and mechanical connection.

Technical Specifications

• Material: Galvanized Steel
• Trade Size: 3 inches
• Length: 4 inches
• Conduit Type Compatibility: Rigid Metal Conduit, IMC
• Listing: UL Listed
• UPC: 751338319103

Standard Information

• Brand: SOUTHWIRE
• Manufacturer Part Number: N-300400