Conduit Nipples | McMaster-Carr

	Conduit Trade Size Conduit Trade Size

1/2

3/4

1 1/4

1 1/2

	Type Type


Connector	Adapter

	Thread Size Thread Size

	Thread Type Thread Type

NPT

NPSM

	Shape Shape


Straight	Offset Elbow

	Conduit Type Conduit Type

IMC

RMC

	Connection Type Connection Type


Conduit	Electrical Box

	Length Length

	Threading Threading

Fully Threaded

Threaded on Both Ends

	Material Material

Steel

Zinc

	Knockout Connection Type Knockout Connection Type

Threaded

Flanged End

	For Knockout Trade Size For Knockout Trade Size

	Specifications Met Specifications Met

CSA

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

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21 Products

About Conduit

Connectors for Medium-Wall (IMC) and Thick-Wall (Rigid) Steel Conduit

Join pieces of medium-wall (IMC) and thick-wall (rigid) conduit.

Fully threaded male and male with threaded ends are also known as nipple extensions. They extend the length of conduit or connect two outlet boxes or enclosures.

Offset elbow connectors join knockouts on outlet boxes or enclosures that do not align.

For technical drawings and 3-D models, click on a part number.

Straight Connectors—Threaded Conduit or Electrical Box Connection

Fully Threaded

With Threaded Ends

Conduit or Electrical Box Connection
Conduit Trade Size	Thread Size	Thread Type	Gender	Lg.	Material	Specifications Met		Each
Fully Threaded
1/2	1/2	NPT	Male	1 1/8"	Zinc-Plated Steel	UL Listed, C-UL Listed, CSA Certified	0000000	00000
3/4	3/4	NPT	Male	1 3/8"	Zinc-Plated Steel	UL Listed, C-UL Listed, CSA Certified	0000000	0000
1	1	NPT	Male	1 1/2"	Zinc-Plated Steel	UL Listed, C-UL Listed, CSA Certified	0000000	0000
Threaded Ends
1/2	1/2	NPT	Male	3"	Zinc-Plated Steel	UL Listed, C-UL Listed, CSA Certified	0000000	0000
1/2	1/2	NPT	Male	6"	Zinc-Plated Steel	UL Listed, C-UL Listed, CSA Certified	0000000	0000
3/4	3/4	NPT	Male	3"	Zinc-Plated Steel	UL Listed, C-UL Listed, CSA Certified	0000000	0000
3/4	3/4	NPT	Male	6"	Zinc-Plated Steel	UL Listed, C-UL Listed, CSA Certified	0000000	0000
1	1	NPT	Male	3"	Zinc-Plated Steel	UL Listed, C-UL Listed, CSA Certified	0000000	0000
1	1	NPT	Male	6"	Zinc-Plated Steel	UL Listed, C-UL Listed, CSA Certified	0000000	0000

Offset Elbow Connectors—Threaded Conduit or Electrical Box Connection

Conduit or Electrical Box Connection
Conduit Trade Size	Thread Size	Thread Type	Gender	Offset Lg.	Material	Specifications Met		Each
1/2	1/2	NPSM	Male	3/4"	Zinc	UL Listed, CSA Certified	0000000	00000
3/4	3/4	NPSM	Male	3/4"	Zinc	UL Listed, CSA Certified	0000000	0000
1	1	NPSM	Male	3/4"	Zinc	UL Listed, CSA Certified	0000000	0000
1 1/4	1 1/4	NPSM	Male	3/4"	Zinc	UL Listed, CSA Certified	0000000	0000
1 1/2	1 1/2	NPSM	Male	3/4"	Zinc	UL Listed, CSA Certified	0000000	0000
2	2	NPSM	Male	3/4"	Zinc	UL Listed, CSA Certified	0000000	00000

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.

For technical drawings and 3-D models, click on a part number.

Straight Adapters—Threaded Conduit Connection × Flanged End Electrical Box Connection

Conduit Connection				Electrical Box Connection
Conduit Trade Size	Thread 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	000
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