Bridgeport Fittings 1109 Malleable Iron Conduit Nipple 3 in

Product Description

The BRIDGEPORT FITTINGS 1109 is a 3-inch malleable iron conduit nipple designed to extend a conduit system between enclosures when paired with a locknut. It features NPSM threads that form a pressure-tight, vibration-resistant seal when male and female threads are properly engaged. Malleable iron construction provides high tensile strength suitable for demanding electrical installations. This nipple meets NEMA Standard FB-1 and UL Standard UL-514B, making it appropriate for code-compliant work in both commercial and residential settings.

This conduit nipple is used in electrical conduit systems where a short threaded extension is needed between two enclosures, junction boxes, or panels. It is suited for installations where vibration resistance and a secure mechanical seal are required. Electricians use this nipple in conduit runs that transition into enclosure knockouts, maintaining the form and protection of the wiring within. It is applicable in residential, commercial, and light industrial electrical work.

Key Features

• NPSM threads provide a pressure-tight, vibration-resistant mechanical seal
• Malleable iron construction delivers high tensile strength and durability
• 3-inch trade size fits standard conduit system enclosure knockouts
• Meets NEMA Standard FB-1 for conduit fittings
• Listed to UL Standard UL-514B for fittings for conduit and outlet boxes
• Designed for use with a locknut to secure connection between enclosures

Compatibility

Designed as an OEM-style replacement and standard-fit conduit nipple for 3-inch electrical conduit systems requiring NPSM-threaded fittings at enclosure entry points.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC). De-energize all circuits and verify the absence of voltage before working on any conduit system or enclosure. Thread the nipple fully into the enclosure knockout and secure with an appropriate locknut to complete the mechanical connection. Avoid over-tightening, which can damage the threads or fitting body.

Technical Specifications

• Trade Size: 3 inches
• Thread Type: NPSM
• Material: Malleable Iron
• NEMA Standard: FB-1
• UL Standard: UL-514B

Standard Information

• Brand: BRIDGEPORT FITTINGS
• Manufacturer Part Number: 1109