Southwire LNS75I Sealing Locknut Steel 3/4 Inch

Product Description

The SOUTHWIRE LNS75I is a 3/4-inch steel sealing locknut designed to secure conduit fittings to enclosures, panels, and junction boxes while providing a weather-resistant seal at the entry point. This type of fitting is standard in commercial and industrial electrical installations where a tight mechanical connection and moisture control are both required. Electricians use sealing locknuts in wet, damp, or outdoor locations to prevent water intrusion into electrical enclosures. The steel construction delivers the durability and thread integrity needed for reliable long-term performance in demanding service environments.

This sealing locknut is suited for use in residential, commercial, and light industrial electrical work wherever a 3/4-inch threaded conduit entry must be secured and sealed. Typical applications include service entrances, outdoor panels, weatherproof enclosures, and conduit terminations at equipment. It is installed by licensed electricians working under NEC guidelines for wet or damp location wiring methods.

Key Features

• Steel construction for strength and thread durability in demanding installations
• 3/4-inch trade size fits standard threaded conduit fittings and knockouts
• Sealing design helps prevent moisture intrusion at conduit entry points
• Suitable for wet, damp, and outdoor electrical enclosure applications
• One Year Limited Warranty from SOUTHWIRE

Compatibility

Designed as an OEM-style replacement and standard trade fitting for 3/4-inch threaded conduit terminations at electrical enclosures, panels, and junction boxes.

Installation Notes

Installation should be performed by a licensed electrician in accordance with NEC requirements for the specific location type. De-energize all circuits and lock out the panel before working inside any enclosure. Thread the locknut onto the conduit fitting by hand first, then tighten with a locknut wrench or strap wrench to achieve a firm, sealed connection without overtightening the fitting threads. Inspect the sealing surface for damage before installation to ensure a proper weather seal.

Technical Specifications

• Trade Size: 3/4 inches
• Material: Steel
• Weight: 8 pounds
• Warranty: One Year Limited
• Country of Origin: Indonesia

Standard Information

• Brand: SOUTHWIRE
• Manufacturer Part Number: LNS75I