NSI Industries 248 - Coupling, Set Screw, Steel, Size 3 1/2 Inch
NSI Industries

248

UPC: 781747002488


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Overview

The NSi Industries 3 1/2 Inch Steel Set Screw Coupling (SKU: 248) provides a secure, precision-engineered solution for connecting shafts in industrial machinery. Crafted from durable steel, this coupling ensures reliable power transmission and long-lasting durability in demanding environments. The set screw design allows for easy installation and maintenance, eliminating the need for specialized tools or complex procedures. Ideal for applications in manufacturing, automation, and heavy-duty equipment, this coupling accommodates standard 3.5-inch shaft sizes with a secure, vibration-resistant connection. Its robust steel construction delivers superior strength and corrosion resistance, making it suitable for use in harsh industrial conditions. The coupling's straightforward design ensures minimal downtime during installation or replacement, while its precision engineering guarantees consistent performance in critical applications. Compatible with a wide range of industrial machinery, this coupling is a cost-effective choice for engineers and maintenance teams seeking reliable shaft connections.
  • Material: High-strength steel for durability and corrosion resistance
  • Size: 3.5-inch diameter for standard shaft applications
  • Set screw design for secure, vibration-resistant connections
  • Easy installation with no specialized tools required
  • Precision-engineered for reliable power transmission in industrial machinery

Specifications

Application
Used to join two lengths of EMT, Rigid and IMC. Concrete tight when taped.
Insulated
No
Material Quality
Steel
Special Features
Concrete tight
Standard
UL
Trade Size
3.5 in
Type
Coupling
Package Weight (Imperial)
2.133 L
Package Weight (Metric)
0.968 kg
Coupling, Set Screw, Zinc Die Cast, Size 3 1/2 Inch

248-DC

Coupling, Set Screw, Zinc Die Cast, Size 3 1/2 Inch
3-1/2" EMT/Rigid to FMC Transition Coupling

289-XS

3-1/2" EMT/Rigid to FMC Transition Coupling
Coupling, Set Screw, Zinc Die Cast, Size 1 Inch

242-DC

Coupling, Set Screw, Zinc Die Cast, Size 1 Inch
Coupling, compression, steel, 1/2"

260-US

Coupling, compression, steel, 1/2"
Coupling, compression, steel, 3/4"

261-US

Coupling, compression, steel, 3/4"

Frequently Asked Questions

What is the catalog ID for Product 248?

The catalog ID for Product 248 is 248.

What is the UPC number for Product 248?

The UPC number for Product 248 is 781747002488.

What is the trade size of the coupling?

The trade size of the coupling is 3-1/2 inches.

What materials are used in Product 248?

Product 248 is made of steel and has a zinc electro-plate finish.

Is Product 248 concrete tight?

Yes, Product 248 is concrete tight when taped.

What are the certifications for Product 248?

Product 248 meets Federal Specification Number A-A-50553 and UL Standard UL-514B.

What applications is Product 248 suitable for?

Product 248 is used to join two lengths of EMT, Rigid, and IMC.

Frequently Asked Questions about NSI Industries

What technical support does NSi Industries offer?

NSi Industries offers dedicated technical support through their toll-free technical support line at 888.500.4598. They are committed to customer satisfaction and promise to make every reasonable effort to remedy any product or service issues. Additionally, customers can contact their customer service team at 800.321.5847 or email [email protected] for further technical assistance.

What are the key features of NSi Industries products?

NSi Industries products feature exceptional versatility, reliability, and safety across multiple industrial automation categories. Key features include insulation piercing connectors with no wire stripping required, watertight and corrosion-free designs, wide wire range compatibility (from #14 AWG to 750 MCM), and the ability to install on energized conductors. Their product lines like Easy-Tap™ Connectors and TORK® Digital Timers demonstrate advanced capabilities such as turbo spacers, double shear-head bolts, astronomic scheduling, and enhanced switching technologies.

What environmental ratings do NSi Industries products have?

NSi Industries enclosures feature robust environmental ratings, including IEC 60529 IP66 certification, NEMA Type 1, 2, 3, 4, 4X, 12, and 13 ratings, and UL/CSA standards. Their products are designed for both indoor and outdoor applications, with protection against dust, water, corrosion, and extreme temperatures ranging from -40°F to 266°F.

How are NSi Industries products typically installed?

NSi Industries products are typically installed using detailed mechanical and digital wiring diagrams that specify precise connection methods for various voltage configurations (120V, 208V, 240V, 277V, 480V). Installation involves carefully following product-specific wiring schematics, which include clear terminal block connections, ground wire specifications, and phase alignment requirements. Professional electricians and technicians should reference the specific product's wiring diagram to ensure correct installation and electrical compliance.

What industries and applications are NSi Industries products used for?

NSi Industries provides electrical and automation products for diverse industrial applications, including lighting control, electrical enclosures, wire management, connectors, and sensor technologies. Their product lines serve commercial, industrial, and infrastructure markets with solutions for electrical infrastructure, control systems, and safety-critical environments.

What are the main product lines offered by NSi Industries?

NSi Industries offers a comprehensive range of industrial products including TORK® Photocontrols, Polaris™ Lighting Controls, Easy-Twist™ Grounding Solutions, Miniterms, Cable Ties, Connectors, Enclosures, Occupancy Sensors, and Wire Management systems. Their product lines span electrical components, control devices, and industrial automation accessories designed for diverse applications in commercial and industrial settings.

What accessories are available for NSi Industries products?

NSi Industries offers a range of accessories for their product lines, including photocontrol accessories like replacement caps, mounting brackets, and receptacles. Specific accessories include shorting caps, open caps, 3-pin and 7-pin receptacles, and utility mounting brackets for conduit photocontrols. For specialized applications, NSi recommends contacting their customer service team to discuss custom accessory needs.