NSI Mighty-Rite® Split Bushings
- rebeccavanessendel
- Oct 28
- 3 min read

The Right Solution Before or After Pulling Wire
A Listed bushing that can be installed with the wires terminated. Its another contractor innovation from NSI Industries Bridgeport.
Can be installed after the wire pull, without expensive rework
Adjustable tin-plated lay in lug for copper or aluminum grounding wire
Pulling larger conductor wire is easier when the user can install grounding bushings after the pull
Hinged low profile design adjusts and aligns for easy access
Zinc alloy SGB series is suitable for outdoor exposed use
Available in Zinc Alloy and Steel construction
cULus listed

(1) Captive clamp screw
(2) Adjustable lay in lug
(3) Hinged 2-piece design
(4) UV stabilized nylon insulator

Mighty-Rite Split Grounding Bushings
Mighty-Rite's hinged design and adjustable grounding lug deliver installation flexibility on every job. Zinc Die Cast versions are provided with stainless steel hardware and UV Stabilized Insulators. Perfect for Solar Applications!

Insulated Grounding Bushings
Used to protect wires and ground metallic conduit to enclosure or cabinet. Aluminum alloy lug provided for bonding jumper. Plastic bushing prevents damage to wire insulation. Zinc Die Cast versions provided with stainless steel hardware and UV stabilized insulators for outdoor exposed locations.

Mighty-Rite Nonmetallic Split Bushings
Patented split design allows insulating bushing to be installed with conductors terminated. Used to protect and insulate wires from ends of threaded conduit and connectors when assembled to a box or enclosure. Rated 105°C.

Threadless Insulated Grounding Bushings
Used to protect, ground and insulate wires during the pull and while in operation on the end of Rigid or Intermediate metal conduit and fittings. Tin plated Aluminum lug is suitable for copper or aluminum bonding jumper. Plastic insulator protects wire during the pull and while in operation.

Insulating Bushings
Used to protect wires during the pull inside threaded rigid and intermediate conduits, connectors and adapters entering a box or enclosure. Rounded edge provides less friction.

Insulated Bushings
Used to protect wires during the pull inside threaded rigid and intermediate metal conduits and connectors entering a box or enclosure. Plastic insulator with rounded edge provides less friction. Rated 150°C except catalog number 371 and 372 which are rated 105°C.
Pull Caps: Used For Rigid, IMC and PVC Rigid Conduit, seals off conduit during conduit pours.
Bushing Pennies: Used on top edge of conduit and under threaded bushing to prevent foreign matter from entering the conduit.
Knockout Insulated Bushings: Converts metallic box rough edged holes to smooth insulated holes for protection of electrical, voice, data and video cables.
Stud Bushings: Protects wire insulation from abrasion in metal studs. Bushing allows smooth cable pulling. Used for all pre-punched shaped holes.
Insulating Bushings: EMT bushing insulates telephone, computer, video and other low voltage wiring from sharp edges of EMT. Complies with NEC Article 300-15(c).
Power-Flo Technologies is proud to partner with NSI Industries as they continue to deliver high-quality, industry-advancing, and comprehensive product solutions. NSI Industries’ Bridgeport line of bushings brings unmatched versatility and innovation to every jobsite. From the patented Mighty-Rite® split designs that simplify installation after the pull, to rugged zinc alloy and UV-stabilized options built for outdoor use, these solutions ensure wires are protected, grounded, and insulated with ease. Whether for solar, commercial, or residential applications, contractors can trust Bridgeport bushings to deliver durability, safety, and ease of installation—keeping projects efficient and code-compliant every time.
