Nsi Industries 264 Emt Compression Coupling 1-1/2 in

Product Description

The NSI INDUSTRIES 264 is a compression-style coupling designed for joining 1-1/2 inch EMT conduit sections in electrical raceway installations. Constructed from zinc electroplated steel, this fitting delivers a concrete-tight seal that meets Federal Specification A-A-50553 and NEMA FB-1 requirements. It carries UL 514B listing for both US and Canadian installations. The compression design eliminates the need for threading and provides a secure mechanical connection that resists moisture intrusion, making it well suited for exposed or embedded conduit runs where environmental integrity is required.

This coupling is used on EMT conduit in residential, commercial, and light industrial electrical installations. It is appropriate for use in concrete poured applications due to its concrete-tight rating. Electricians install this fitting wherever EMT sections must be joined mid-run, including wall chases, ceiling assemblies, and slab-embedded conduit work. The standard package quantity of 25 units suits both single-job pulls and stocking for ongoing service work.

Key Features

• Compression-type connection — no threading required for a secure mechanical joint
• Concrete-tight construction rated for embedded conduit applications
• Zinc electroplated steel body resists corrosion in damp and wet-rated installations
• UL 514B listed for US and Canadian installations
• Meets Federal Specification A-A-50553 and NEMA FB-1 standards
• RoHS compatible materials

Compatibility

Designed for use on 1-1/2 inch EMT conduit as an OEM-style compression coupling fitting per UL 514B and NEMA FB-1 specifications.

Installation Notes

Installation is performed by licensed electricians in accordance with the National Electrical Code (NEC). De-energize all circuits in the affected raceway before making or breaking conduit connections. Ensure conduit ends are cut square, deburred, and fully seated into the coupling before tightening the compression nut. Do not overtighten the compression fitting, as this can deform the conduit or fitting body and compromise the mechanical seal.

Technical Specifications

• Type: Compression
• Trade Size: 1-1/2 inches
• Material: Zinc Electroplated Steel
• Constructional Feature: Concrete-Tight
• Width: 9.75 inches
• Weight: 15 pounds
• Applicable Standard: Federal Specification A-A-50553, NEMA FB-1
• Approval: UL 514B, UL (Canada and US)
• RoHS Compatible: Yes
• Country of Origin: China
• Standard Package Quantity: 25

Standard Information

• Brand: NSI INDUSTRIES
• Manufacturer Part Number: 264