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RACO 1516 Three-Piece Threaded Coupling, 4 in Trade Size, Iron, for RMC - Three-Piece Threaded Couplings
RACOThree-Piece Threaded Couplings

RACO 1516 Three-Piece Threaded Coupling, 4 in Trade Size, Iron, for RMC

The RACO Threaded Coupling is a three-piece threaded coupling designed for use with RMC conduit. This iron coupling has a 4-inch trade size and an overall length of 3 15/32 inches, identified by manufacturer part…

SKU 3G-OTH-06619

Brand
RACO
Item
1516 Three-Piece Threaded Coupling, 4 in Trade Size, Iron, for RMC
Part Number
1516
Category
Three-Piece Threaded Couplings
Available to Order
Also known as:1516RACO
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Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

RACO
Manufacturer Part Number
1516
Type
- Three-Piece: Iron, IMC/RMC
Overall Lg
3 15/32 in
Trade Size
4 in
Compatible Conduit Type
RMC

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RACO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The RACO Threaded Coupling is a three-piece threaded coupling designed for use with RMC conduit. This iron coupling has a 4-inch trade size and an overall length of 3 15/32 inches, identified by manufacturer part number 1516.

Frequently Asked Questions

What is the RACO Threaded Coupling used for?

The RACO Threaded Coupling is used to join two lengths of rigid metal conduit (RMC) in industrial electrical installations. Its three-piece iron design provides a secure, threaded connection for conduit runs in commercial buildings, factories, and infrastructure projects where durable, code-compliant conduit joints are required.

What are the specifications of the RACO Threaded Coupling?

The RACO Threaded Coupling (MPN 1516) is a three-piece iron coupling with a 4-inch trade size and an overall length of 3 15/32 inches. It is compatible with RMC conduit and is manufactured by RACO. The threaded design ensures a tight, reliable connection for heavy-duty electrical conduit systems.

Where to buy the RACO Threaded Coupling worldwide?

You can source the RACO Threaded Coupling worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we supply genuine RACO components for industrial projects globally.

How to install a RACO three-piece threaded coupling?

To install the RACO three-piece threaded coupling, thread the coupling onto the end of one RMC conduit section, then thread the second conduit section into the opposite end. Tighten the center ring to lock the joint. Use a pipe wrench for secure engagement; ensure threads are clean and apply anti-seize compound for corrosion resistance.

Used in

Common applications for RACO
Industrial machinery — RACO liquid-tight connectors (e.g., 3520-3, 3414) terminate flexible metallic conduit at motor and control enclosures.
Water and wastewater treatment — RACO 90-degree liquid-tight connectors (e.g., 3430) route conduit in washdown and outdoor areas requiring liquid-tight terminations.
Commercial electrical raceways — RACO short elbows (e.g., 1/2 in and 3/4 in iron elbows) change direction in IMC and RMC runs per UL 514B.
Panel and equipment wiring — RACO flex screw-in couplings (e.g., 2272) join sections of 1/2 in flexible conduit between machines and junction points.
Raceway transitions — RACO flex-to-EMT couplings (e.g., 1482, 1483) connect flexible conduit to EMT in mixed raceway installations.
Maintenance and repair — RACO conduit fittings and boxes are stocked as spares for replacing damaged terminations and couplings in existing raceways.
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RACO Products

3G Electric supplies RACO three-piece threaded couplings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Three-piece threaded coupling made of iron, with a 2-1/2 in trade size and 3-1/8 in overall length. Designed for joining rigid metal conduit (RMC) in threaded conduit systems. Used in electrical raceway installations for industrial and commercial applications
RACO
Three-piece threaded coupling made of iron, with a 2-1/2 in trade size and 3-1/8 in overall length. Designed for joining rigid metal conduit (RMC) in threaded conduit systems. Used in electrical raceway installations for industrial and commercial applications

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