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RACO Threaded Coupling - Three-Piece: Iron, 4 in Trade Size, 3 15/32 in Overall Lg - Three-Piece Threaded Couplings
RACOThree-Piece Threaded Couplings

RACO Threaded Coupling - Three-Piece: Iron, 4 in Trade Size, 3 15/32 in Overall Lg

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
Threaded Coupling - Three-Piece: Iron, 4 in Trade Size, 3 15/32 in Overall Lg
Category
Three-Piece Threaded Couplings
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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 power distribution — RACO grounding bushings (MPN 1294) for bonding conduit in panelboards and switchgear.
Commercial conduit transitions — RACO reducing bushings (MPN 1155) for downsizing RMC or IMC runs in electrical rooms.
Life safety alarm circuits — RACO steel electrical boxes (MPN 911-9) for housing fire alarm and emergency lighting connections.
Outdoor service entrances — RACO rigid/IMC hubs (MPN 1716) for weatherproof conduit terminations at meter sockets.
Conduit support in cable trays — RACO surface mount clamps (MPN 1304) for securing IMC or RMC to structural steel.
Multi-gang junction boxes — RACO 4-inch square boxes (MPN 189H) with covers for splicing circuits in commercial ceilings.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
RACO Threaded Coupling - Three-Piece: Iron, 1 in Trade Size, 1 3/8 in Overall Lg, IMC/RMC (MPN 1504)
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RACO Compression Coupling: 2 1/2 in Trade Size, 5 3/4 in Overall Lg, RMC, Concrete Tight (MPN 1830)

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