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

3G Electric
RFQ CartGet a QuoteSign inSign up
BRIDGEPORT Knockout Plug: 1/2 in For Conduit Size, Steel, Silver - Knockout Plugs
BRIDGEPORTKnockout Plugs

BRIDGEPORT Knockout Plug: 1/2 in For Conduit Size, Steel, Silver

The BRIDGEPORT Knockout Plug (MPN 1691) is a steel knockout hole plug designed for 1/2 in conduit size. It is intended for use with electrical boxes and enclosures, and comes in a silver finish.

SKU 3G-OTH-06952

Brand
BRIDGEPORT
Item
Knockout Plug: 1/2 in For Conduit Size, Steel, Silver
Category
Knockout Plugs
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
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

Technical Specifications

BRIDGEPORT
Manufacturer Part Number
1691
Type
Steel, Silver, Electrical Boxes and Enclosures
Material
Steel
Color
Silver
Accessory Type
Knockout Hole Plug
For Conduit Size
1/2 in
For Product Type
Electrical Boxes and Enclosures
View Full Spec Sheet

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

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

Product Description

The BRIDGEPORT Knockout Plug (MPN 1691) is a steel knockout hole plug designed for 1/2 in conduit size. It is intended for use with electrical boxes and enclosures, and comes in a silver finish.

Frequently Asked Questions

What is a BRIDGEPORT knockout plug used for?

A BRIDGEPORT knockout plug seals unused openings in electrical boxes and enclosures. It prevents debris ingress and maintains enclosure integrity. This steel plug fits 1/2 in conduit knockouts and is suitable for industrial electrical installations.

What are the specifications of the BRIDGEPORT 1691 knockout plug?

The BRIDGEPORT 1691 is a steel knockout hole plug for 1/2 in conduit size. It is silver in color and designed for electrical boxes and enclosures. The material is steel, providing durability in industrial environments.

Where to buy BRIDGEPORT knockout plugs worldwide?

3G Electric supplies BRIDGEPORT knockout plugs worldwide. We handle full logistics and customs clearance for global delivery. Contact us to source this 1/2 in steel plug for your electrical enclosure needs.

How to install a BRIDGEPORT knockout plug?

To install a BRIDGEPORT knockout plug, press it firmly into the 1/2 in knockout hole of the electrical enclosure until it snaps into place. Ensure the plug is fully seated to maintain a secure seal. No tools are typically required for installation.

Used in

Common applications for BRIDGEPORT
Industrial electrical panel installation — Bridgeport grounding bushings (MPN 382-DC) for bonding conduit to enclosures
Commercial conduit support — Bridgeport one-hole pipe straps (MPN 920-S) for securing EMT runs to walls
Cable management in machinery — Bridgeport squeeze connectors (MPN 801-DC2) for terminating AC/MC cable at junction boxes
Conduit system assembly — Bridgeport steel locknuts (MPN 106-S) for fastening RMC to threaded hubs
Retrofit wiring in buildings — Bridgeport insulating bushings (MPN 382-DC) to protect wire insulation at conduit ends

BRIDGEPORT Products

3G Electric supplies BRIDGEPORT 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 →

Similar products

Matched by specification & description
BRIDGEPORT Reducing Washer: 1 in to 3/4 in For Conduit Size, Steel, Silver, 1.75 in Overall Wd (MPN 1063). Key specifications — For Product Type: Electrical Boxes and Enclosures; Brand: BRIDGEPORT; For Conduit Size: 1 in to 3/4 in; Accessory Type: Reducing Washer; Color: Silver; Material: Steel.
BRIDGEPORT
BRIDGEPORT Reducing Washer: 1 in to 3/4 in For Conduit Size, Steel, Silver, 1.75 in Overall Wd (MPN 1063). Key specifications — For Product Type: Electrical Boxes and Enclosures; Brand: BRIDGEPORT; For Conduit Size: 1 in to 3/4 in; Accessory Type: Reducing Washer; Color: Silver; Material: Steel.
BRIDGEPORT Conduit Nipple: 1/2 in Trade Size, Zinc, Conduit Nipple, Unfinished Zinc (MPN 1102-DC). Key specifications — Standards: UL-514B; Thread Gender: Male; Thread Size: 1/2; Thread Type: NPSM; Brand: BRIDGEPORT; Finish: Unfinished; Item: Conduit Nipple.
BRIDGEPORT
BRIDGEPORT Conduit Nipple: 1/2 in Trade Size, Zinc, Conduit Nipple, Unfinished Zinc (MPN 1102-DC). Key specifications — Standards: UL-514B; Thread Gender: Male; Thread Size: 1/2; Thread Type: NPSM; Brand: BRIDGEPORT; Finish: Unfinished; Item: Conduit Nipple.
Locknut,Steel,Locknut (MPN 105-S). Key specifications — For Conduit Type: Rigid; Insulated: No; Brand: BRIDGEPORT.
BRIDGEPORT
Locknut,Steel,Locknut (MPN 105-S). Key specifications — For Conduit Type: Rigid; Insulated: No; Brand: BRIDGEPORT.
Locknut,Steel,Locknut (MPN 106-S). Key specifications — For Conduit Type: Rigid; Insulated: No; Brand: BRIDGEPORT.
BRIDGEPORT
Locknut,Steel,Locknut (MPN 106-S). Key specifications — For Conduit Type: Rigid; Insulated: No; Brand: BRIDGEPORT.
Locknut,Steel,Locknut (MPN 108-S). Key specifications — For Conduit Type: Rigid; Insulated: No; Brand: BRIDGEPORT.
BRIDGEPORT
Locknut,Steel,Locknut (MPN 108-S). Key specifications — For Conduit Type: Rigid; Insulated: No; Brand: BRIDGEPORT.
Conduit Outlet Body: Aluminum, 3/4 in Trade Size, LB Body, 7.3 cu in Body Capacity, Threaded Hub (MPN LB-42CG). Key specifications — Finish: Enamel Paint; Includes: Gasket; For Use With: Cable; Brand: BRIDGEPORT; Hub Style: Threaded; Mfr. Series: Type LB.
BRIDGEPORT
Conduit Outlet Body: Aluminum, 3/4 in Trade Size, LB Body, 7.3 cu in Body Capacity, Threaded Hub (MPN LB-42CG). Key specifications — Finish: Enamel Paint; Includes: Gasket; For Use With: Cable; Brand: BRIDGEPORT; Hub Style: Threaded; Mfr. Series: Type LB.

More from BRIDGEPORT

View all BRIDGEPORT parts →
BRIDGEPORT Knockout Plug: 3/4 in For Conduit Size, Steel, Silver, Electrical Boxes and Enclosures (MPN 1692). Key specifications — For Product Type: Electrical Boxes and Enclosures; Brand: BRIDGEPORT; For Conduit Size: 3/4 in; Accessory Type: Knockout Hole Plug; Color: Silver; Material: Steel.
BRIDGEPORT
BRIDGEPORT Knockout Plug: 3/4 in For Conduit Size, Steel, Silver, Electrical Boxes and Enclosures (MPN 1692). Key specifications — For Product Type: Electrical Boxes and Enclosures; Brand: BRIDGEPORT; For Conduit Size: 3/4 in; Accessory Type: Knockout Hole Plug; Color: Silver; Material: Steel.