Bridgeport Fittings 3" Malleable Iron Squeeze Connector with Insulated Throat
Professional flexible metal conduit connection solution
Bridgeport Fittings 3" Malleable Iron Squeeze Connector delivers reliable flexible metal conduit termination with heavy-duty malleable iron construction and insulated throat protection. The zinc electro-plated finish and cULus listed design ensure professional performance for electrical installations requiring secure conduit connections.
Professional Features & Benefits
- 3" Size Capacity: Accommodates larger flexible metal conduit runs for comprehensive electrical system connections
- Heavy-Duty Malleable Iron Construction: Provides exceptional strength, rigidity, and flexibility without breaking for long-lasting performance
- Insulated Throat Protection: Protects inner wiring up to 105°C, preventing damage during installation and operation
- Zinc Electro-Plate Finish: Delivers corrosion resistance and professional appearance for demanding environments
- Quick Installation Design: Simply insert conduit and tighten down for fast, secure connections without complex procedures
- cULus Listed Safety: Meets UL-514B standards and RoHS compliance for code-compliant installations
- NEMA FB-1 Rating: Ensures reliable performance in standard electrical applications
Technical Specifications
- Country Of Origin: India
- Csa File Number: LR39354
- Department: Electrical
- Dimensions A: 2/3/16
- Dimensions B: 1
- Dimensions C: 4/11/16
- Dimensions D: 3
- Division: Electrical H1
- Federal Specification Number: A-A-50553
- Insulated Throat: Insulated throat protects inner wiring up to 105°C
- Malleable Iron: Heavy-duty malleable iron has the strength, rigidity, ability to flex without breaking, fracture to
- Nema Rating: FB-1
- Nema Standard: FB-1
- Primary Materials: Malleable Iron
- Product Finish: Zinc electro-plate
- Product Material: Malleable Iron
- Product Size: 3"
- Quick And Easy: To secure flexible metal conduit, simply insert conduit into the squeeze connector and tighten down
- Safety Compliance: All Bridgeport squeeze connectors are cULus listed and RoHS compliant
- Standard Package Quantity: 5
- Sub Division: Electrical-E H2
- Ul File: E9391
- Ul File Number: E9391
- Ul Standard: UL-514B
- Unspsc: 39121419
Professional Applications
- Commercial Electrical Installations
- Industrial Facility Wiring
- Residential Electrical Systems
- Institutional Buildings
- Retrofit and Maintenance Projects
- Flexible Metal Conduit Terminations
Why Choose Bridgeport Fittings Quality?
Bridgeport Fittings delivers professional-grade electrical connectors with cULus listing, RoHS compliance, and NEMA FB-1 rating. The heavy-duty malleable iron construction with zinc electro-plate finish ensures reliable performance and durability for demanding electrical applications.
Manufacturer Resources
Product Specs
- Csa File Number:
- LR39354
- Department:
- Electrical
- Dimensions A:
- 2/3/16
- Dimensions C:
- 4/11/16
- Division:
- Electrical H1
- Federal Specification Number:
- A-A-50553
- Insulated Throat:
- Insulated throat protects inner wiring up to 105°C
- Nema Rating:
- FB-1
- Nema Standard:
- FB-1
- Primary Materials:
- Malleable Iron
- Product Finish:
- Zinc electro-plate
- Product Material:
- Malleable Iron
- Standard Package Quantity:
- 5
- Sub Division:
- Electrical-E H2
- Certifications:
- E9391
- Ul File Number:
- E9391
- Ul Standard:
- UL-514B
- Unspsc:
- 39121419
- Product Type:
- AC/MC/Flex Connector
- Product Subgroup:
- Flexible Conduit & Fittings
- Product Group:
- Conduit & Raceway
Bridgeport Fittings BF-403 – Frequently Asked Questions
1) Is this squeeze connector acceptable for a job that specs cULus listed and RoHS compliant fittings?
Yes. Bridgeport squeeze connectors are cULus listed to UL-514B under UL file E9391, carry CSA file LR39354, meet NEMA FB-1 and federal specification A-A-50553, and are RoHS compliant. Those are the numbers to put on a submittal for an institutional or government job.
2) What is the equivalent of the Bridgeport 410 squeeze connector for terminating 1 inch flexible metal conduit?
The Bridgeport 410 is a 1 inch flex trade size squeeze connector with a 1 inch knockout, made of malleable iron with a zinc electro-plate finish. A comparable 1 inch FMC fitting is the Thomas & Betts 306 straight Tite-Bite connector, which is a non-insulated 1 inch FMC fitting. Both terminate 1 inch flex; the Bridgeport squeeze design secures the conduit by inserting it and tightening down.
3) Do I need an insulated throat connector or will a non-insulated FMC fitting work?
Bridgeport offers both: the 407-I in 1/2 inch and the 420-I in 4 inch carry an insulated throat that protects inner wiring up to 105 degrees C, while the 407, 410 and the other standard-throat sizes do not. The Thomas & Betts 306 in 1 inch FMC is a non-insulated fitting. Where the wiring method or inspector calls for a bushed or insulated throat, choose the insulated Bridgeport version; otherwise the standard-throat sizes cover the same trade sizes.
4) Will a steel or die-cast squeeze connector hold up the same as the malleable iron one?
Malleable iron is the point of this fitting. It gives you strength and rigidity with the ability to flex without breaking rather than fracturing like a die-cast body, which matters on larger flex runs and in industrial areas where fittings take abuse. The zinc electro-plate finish handles corrosion in normal indoor and sheltered commercial environments.
5) How do these squeeze connectors install, and do I need a locknut or extra hardware?
Installation is insert and tighten: push the flexible metal conduit into the squeeze body and tighten the clamp screws down, then run the threaded hub through the box knockout. No special tooling and no crimping. Match the knockout to the size chart before you order, since only the 3/8 inch uses an oversized 1/2 inch KO.
6) Is a Bridgeport squeeze connector the same thing as a Tite-Bite connector?
Both terminate flexible metal conduit, but they are different designs. The squeeze connector uses a clamp you tighten down over the flex. The Thomas & Betts 306 is a straight Tite-Bite connector for 1 inch FMC, non-insulated. If you're standardizing a building on one style, note the Bridgeport line covers 3/8 inch through 4 inch, so it can carry small branch flex and large feeder flex on the same part family.
7) Can these be used outdoors or in a wet location?
Treat them as dry and damp location fittings. The rating on record is NEMA FB-1 with a zinc electro-plate corrosion resistant finish, which is not a wet location or raintight designation. For exposed exterior runs, go with a liquidtight system and liquidtight fittings instead.
8) Is the RACO 232MSCM an alternative to a Bridgeport squeeze connector?
No, they do different jobs. The RACO 232MSCM is a 4 inch square welded box, 2-1/8 inch deep, with an M bracket and a STAB-IT connector built in. The Bridgeport 403 through 420 squeeze connectors are standalone malleable iron fittings that terminate flexible metal conduit at a knockout. If you are landing FMC on a box you already have, you want the Bridgeport connector sized to the knockout.
9) How many squeeze connectors come in a pack?
Standard package quantity is 5 per pack. Worth knowing if you are pricing out a panel changeout or a multi-unit rough-in and need to work in multiples of five per size.
How fast can I get the Bridgeport Fittings BF-403 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Bridgeport Fittings BF-403 come with a warranty?
Absolutely. The Bridgeport Fittings BF-403 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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