3 in. Rigid Conduit Coupling, Threaded, Steel | UL 514B | 0331
Shipping calculated at checkout
SKU: 0331
1000 in stock
Open here
CT 0331 — 3" rigid conduit coupling, threaded, steel, zinc plated. For RMC / IMC trade size 3 (OD 3.500"). UL 6 / UL 514B; NPT threads.
| Part No. | 0331 |
|---|---|
| Trade size | 3 in — fits OD 3.500 in |
| Raceway | RMC / IMC |
| Material / finish | Steel, zinc plated |
| Listing | UL 6 / UL 514B; NPT threads |
| Package | Sold each; box quantities priced through the trade desk |
Cross-reference
| Manufacturer | Part No. |
|---|---|
| Steel | City / T&B threaded coupling class |
Crosses identify fittings of the same trade size, raceway, and listing class. "Class" entries are family-level — confirm the exact number on the manufacturer datasheet.
Where it's used
- Joining threaded rigid metal conduit and IMC
- Replacing couplings lost from factory-threaded sticks
- Service masts, exterior and underground rigid runs
How to install
Wrench-tight on both ends (NEC 344.42) — a hand-tight threaded coupling is an open ground. Use thread compound listed for electrical use outdoors. Guide: Rigid vs EMT Couplings.
Stocked in Oxnard, CA — same-day shipping on orders by 2PM ET. Volume and trade pricing through the trade desk.
Why Pros Buy Direct from Conversions Tech
Engineered in the USA. Our U.S.-based engineering team designs and specifies our core product lines, and every product we carry — designed in-house or built to our exact specifications by certified partner factories — is quality-verified before it ships. UL/CSA listed where required, NEC compliant.
Cross-reference savings. Direct equivalents to Burndy, Hubbell, and other OEM part numbers at up to 30% less — same specs, same certifications, without the big-brand markup.
Real technical support. Need a torque spec, die reference, or an OEM quote? You’ll speak directly with the Conversions Tech engineering desk — not a script reader — for instant answers, custom kitting, and private-label options.
Fast US fulfillment. Orders in by 2PM ET ship same day from our US warehouse, nationwide ground and expedited.
