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: 0331
| Brand | Part Number | Notes |
|---|---|---|
| Bridgeport | 1128-SC | Same trade size and fitting type |
| Conversions Tech | 0331 | Stocked; same-day shipping on in-stock items |
Crosses match trade size, fitting type and listing class. Verify fit against the manufacturer data sheet for your application. Trademarks belong to their owners. Look up any competitor number on the cross-reference hub.
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 — same-day shipping on in-stock items. Volume and trade pricing through the trade desk.
Why Pros Buy Direct from Conversions Tech
Quality-tested and UL Listed. Every product we carry is built to our specifications by certified manufacturing partners and 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.
