Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RACO 1042 Knockout Plug, 1/2 in Conduit Size, Steel, Silver - Knockout Plugs
RACOKnockout Plugs

RACO 1042 Knockout Plug, 1/2 in Conduit Size, Steel, Silver

The RACO Knockout Plug (MPN 1042) is a steel knockout seal designed for use with 1/2 in conduit sizes in junction boxes. This silver accessory provides a closure for unused openings in junction boxes and panel boards.

SKU 3G-OTH-06431

Brand
RACO
Item
1042 Knockout Plug, 1/2 in Conduit Size, Steel, Silver
Part Number
1042
Category
Knockout Plugs
Available to Order
Also known as:1042RACO
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

RACO
Manufacturer Part Number
1042
Type
Steel, Silver, Junction Boxes/Panel Boards
Material
Steel
Color
Silver
Accessory Type
Knockout Seal
For Conduit Size
1/2 in
For Product Type
Junction Boxes

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The RACO Knockout Plug (MPN 1042) is a steel knockout seal designed for use with 1/2 in conduit sizes in junction boxes. This silver accessory provides a closure for unused openings in junction boxes and panel boards.

Frequently Asked Questions

What is a RACO knockout plug used for?

A RACO knockout plug seals unused openings in junction boxes and panel boards. It prevents debris and moisture from entering the enclosure while maintaining a clean, professional installation. This steel plug fits 1/2 in conduit knockouts and is commonly used in commercial and industrial electrical systems.

What are the specifications of the RACO knockout plug 1042?

The RACO knockout plug (MPN 1042) is made of steel with a silver finish. It is designed for 1/2 in conduit sizes and is used as a knockout seal for junction boxes and panel boards. The accessory type is a knockout seal, and it is compatible with standard junction box openings.

Where to buy RACO knockout plugs worldwide?

3G Electric supplies RACO knockout plugs worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us to source the RACO 1042 knockout plug for your project. We provide reliable sourcing and shipping to any country.

How to install a RACO knockout plug?

To install a RACO knockout plug, first ensure the knockout opening is clean and free of burrs. Insert the plug into the 1/2 in hole and press firmly until it snaps into place. For a secure fit, use a knockout plug installation tool or a flathead screwdriver to seat the plug evenly. No additional sealing is required.

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.
Not sure this is the right part? Photo-identify it

RACO Products

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

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from RACO

View all RACO parts
Steel knockout seal for closing unused conduit openings in junction boxes and panel boards. Silver finish, fits 1-1/4 in conduit size. Prevents debris and moisture ingress
RACO
Steel knockout seal for closing unused conduit openings in junction boxes and panel boards. Silver finish, fits 1-1/4 in conduit size. Prevents debris and moisture ingress

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first