About Conduit
More
Adapters for Medium-Wall (IMC) and Thick-Wall (Rigid) Steel Conduit
Attach medium-wall (IMC) and thick-wall (rigid) steel conduit to a knockout in an outlet box or enclosure.
NPSM male × flanged end male straight adapters are also known as conduit nipples, chase nipples, and box adapters. The flange installs through a knockout from inside an outlet box or enclosure. Use with a locknut (not included) to create a short raceway between boxes or enclosures.
Conduit Connection | Electrical Box Connection | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Conduit Trade Size  | Pipe Size | Thread Type | Gender | For Knockout Trade Size | Gender | Lg. | Material | Specifications Met | Each | |
| 1/2 | 1/2 | NPSM | Male | 1/2 | Male | 5/8" | Zinc | UL Listed, C-UL Listed, CSA Certified | 0000000 | 00000 |
| 3/4 | 3/4 | NPSM | Male | 3/4 | Male | 3/4" | Zinc | UL Listed, C-UL Listed, CSA Certified | 0000000 | 0000 |
| 1 | 1 | NPSM | Male | 1 | Male | 13/16" | Zinc | UL Listed, C-UL Listed, CSA Certified | 0000000 | 0000 |
| 1 1/4 | 1 1/4 | NPSM | Male | 1 1/4 | Male | 7/8" | Zinc | UL Listed, C-UL Listed, CSA Certified | 0000000 | 0000 |
| 1 1/2 | 1 1/2 | NPSM | Male | 1 1/2 | Male | 15/16" | Zinc | UL Listed, C-UL Listed, CSA Certified | 0000000 | 0000 |
| 2 | 2 | NPSM | Male | 2 | Male | 1" | Zinc | UL Listed, C-UL Listed, CSA Certified | 0000000 | 0000 |
Locknuts for Metal Conduit Fittings
Steel, 316 Stainless
Steel, and Aluminum
Steel with
Serrated Facing
Secure threaded metal conduit fittings to a knockout in an outlet box or enclosure.
Zinc-plated steel, 316 stainless steel, and aluminum locknuts are compatible with NPSL and NPSM threads.
Locknuts with a PVC molded gasket create a seal for moisture protection.
Locknuts with serrated facing grip the material surface for more stability, compared to locknuts with smooth facing.
| Pipe Size | Specifications Met | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | ||||
|---|---|---|---|---|
NPSM Threads | ||||
| 1/2 | UL Listed, CSA Certified | 10 | 00000000 | 00000 |
| 3/4 | UL Listed, CSA Certified | 10 | 00000000 | 0000 |
| 1 | UL Listed, CSA Certified | 10 | 00000000 | 0000 |
| 1 1/2 | UL Listed, CSA Certified | 10 | 00000000 | 00000 |
| 1 1/4 | UL Listed, CSA Certified | 10 | 00000000 | 0000 |
| 2 | UL Listed, CSA Certified | 10 | 00000000 | 00000 |
| Each | ||||
| 2 1/2 | CSA Certified | __ | 00000000 | 0000 |
| 3 | CSA Certified | __ | 00000000 | 0000 |
| 3 1/2 | CSA Certified | __ | 00000000 | 0000 |
| 4 | CSA Certified | __ | 00000000 | 0000 |
| Pkg. | ||||
Zinc-Plated Steel with PVC Molded Gasket | ||||
NPSM Threads | ||||
| 1/2 | UL Listed, CSA Certified | 2 | 00000000 | 0000 |
| 3/4 | UL Listed, CSA Certified | 2 | 00000000 | 0000 |
| 1 | UL Listed, CSA Certified | 2 | 00000000 | 0000 |
| 1 1/2 | UL Listed, CSA Certified | 2 | 00000000 | 0000 |
| 1 1/4 | UL Listed, CSA Certified | 2 | 00000000 | 0000 |
| 2 | UL Listed, CSA Certified | 2 | 00000000 | 00000 |
| Each | ||||
| 2 1/2 | CSA Certified | __ | 00000000 | 00000 |
| 3 | CSA Certified | __ | 00000000 | 00000 |
| 3 1/2 | CSA Certified | __ | 00000000 | 00000 |
Zinc-Plated Steel with Serrated Facing | ||||
NPSM Threads | ||||
| 1/2 | UL Listed, CSA Certified | __ | 00000000 | 0000 |
| 3/4 | UL Listed, CSA Certified | __ | 00000000 | 0000 |
| 1 | UL Listed, CSA Certified | __ | 00000000 | 0000 |
| 1 1/2 | UL Listed, CSA Certified | __ | 00000000 | 0000 |
| 1 1/4 | UL Listed, CSA Certified | __ | 00000000 | 0000 |
| 2 | UL Listed, CSA Certified | __ | 00000000 | 0000 |
| 2 1/2 | CSA Certified | __ | 00000000 | 00000 |
| 3 | CSA Certified | __ | 00000000 | 00000 |
| 4 | CSA Certified | __ | 00000000 | 00000 |
Aluminum | ||||
NPSM Threads | ||||
| 1/2 | __ | __ | 00000000 | 0000 |
| 3/4 | __ | __ | 00000000 | 0000 |
| 1 | __ | __ | 00000000 | 0000 |
| 1 1/2 | __ | __ | 00000000 | 0000 |
| 1 1/4 | __ | __ | 00000000 | 0000 |
| 2 | __ | __ | 00000000 | 00000 |
Locknuts for Plastic Conduit Fittings
Secure threaded plastic conduit fittings to a knockout in an outlet box or enclosure. PVC locknuts are compatible with PVC Schedule 40 and Schedule 80 conduit with NPT and NPSM threads.