	Pipe Size Pipe Size

1/2
3/4
1
1 1/4
1 1/2
2
2 1/2
3
4

	Threading Threading

	Threaded on Both Ends
	Fully Threaded

	Length Length

	For Use With For Use With

	ID ID

	Wall Thickness Wall Thickness

	OD OD

	Finish Finish

Black Coated

Galvanized

	Specifications Met Specifications Met

ASME

ASTM

	Dash Size Dash Size

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

DFARS Specialty Metals
COTS-Exempt

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139 Products

How to Identify and Measure Fittings

Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.

Extra-Thick-Wall Steel Threaded Pipe Nipples and Pipe

Extra-thick walls give this pipe excellent strength to handle high-pressure applications. It is also known as Schedule 160. Pipe is seamless, so it has a smooth interior for unrestricted flow. It is for use in noncorrosive environments.

Fully threaded pipe is also known as a close nipple; it is threaded on each end to the center.

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

Fully Threaded

For Use With: Air, Water, Oil, Natural Gas, Steam, Hydraulic Fluid
Specifications Met: ASME B1.20.1, ASTM A106, ASTM A53, ASTM A733
Fittings: Use Class 3000 steel
Flanges: Use Class 1500 steel

Pipe Size	Dash Size	Lg.	Thread Type	Construction	Material		Each
1/2	08	1 1/8"	NPT	Seamless	Black-Coated Steel	00000000	00000
3/4	12	1 3/8"	NPT	Seamless	Black-Coated Steel	00000000	0000
1	16	1 1/2"	NPT	Seamless	Black-Coated Steel	00000000	00000
1 1/4	20	1 5/8"	NPT	Seamless	Black-Coated Steel	00000000	00000
1 1/2	24	1 3/4"	NPT	Seamless	Black-Coated Steel	00000000	00000
2	32	2"	NPT	Seamless	Black-Coated Steel	00000000	00000
2 1/2	40	2 1/2"	NPT	Seamless	Black-Coated Steel	00000000	00000
3	48	2 5/8"	NPT	Seamless	Black-Coated Steel	00000000	00000
4	64	2 7/8"	NPT	Seamless	Black-Coated Steel	00000000	000000

Threaded on Both Ends

For Use With: Air, Water, Oil, Natural Gas, Steam, Hydraulic Fluid
Specifications Met: ASME B1.20.1, ASTM A106, ASTM A53, ASTM A733
Fittings: Use Class 3000 steel
Flanges: Use Class 1500 steel

1/2 Pipe Size—08 Dash Size
Lg.	Thread Type	Construction	Material		Each
1 1/2"	NPT	Seamless	Black-Coated Steel	00000000	00000
2"	NPT	Seamless	Black-Coated Steel	00000000	0000
2 1/2"	NPT	Seamless	Black-Coated Steel	00000000	0000
3"	NPT	Seamless	Black-Coated Steel	00000000	0000
4"	NPT	Seamless	Black-Coated Steel	00000000	00000
5"	NPT	Seamless	Black-Coated Steel	00000000	00000
6"	NPT	Seamless	Black-Coated Steel	00000000	00000
8"	NPT	Seamless	Black-Coated Steel	00000000	00000
10"	NPT	Seamless	Black-Coated Steel	00000000	00000
12"	NPT	Seamless	Black-Coated Steel	00000000	00000
18"	NPT	Seamless	Black-Coated Steel	0000000	00000
24"	NPT	Seamless	Black-Coated Steel	0000000	00000
36"	NPT	Seamless	Black-Coated Steel	0000000	00000
3/4 Pipe Size—12 Dash Size
1 1/2"	NPT	Seamless	Black-Coated Steel	00000000	0000
2"	NPT	Seamless	Black-Coated Steel	00000000	00000
2 1/2"	NPT	Seamless	Black-Coated Steel	00000000	00000
3"	NPT	Seamless	Black-Coated Steel	00000000	00000
4"	NPT	Seamless	Black-Coated Steel	00000000	00000
5"	NPT	Seamless	Black-Coated Steel	00000000	00000
6"	NPT	Seamless	Black-Coated Steel	00000000	00000
8"	NPT	Seamless	Black-Coated Steel	00000000	00000
10"	NPT	Seamless	Black-Coated Steel	00000000	00000
12"	NPT	Seamless	Black-Coated Steel	00000000	00000
18"	NPT	Seamless	Black-Coated Steel	0000000	00000
24"	NPT	Seamless	Black-Coated Steel	0000000	00000
36"	NPT	Seamless	Black-Coated Steel	0000000	000000
1 Pipe Size—16 Dash Size
2"	NPT	Seamless	Black-Coated Steel	00000000	00000
2 1/2"	NPT	Seamless	Black-Coated Steel	00000000	00000
3"	NPT	Seamless	Black-Coated Steel	00000000	00000
4"	NPT	Seamless	Black-Coated Steel	00000000	00000
5"	NPT	Seamless	Black-Coated Steel	00000000	00000
6"	NPT	Seamless	Black-Coated Steel	00000000	00000
8"	NPT	Seamless	Black-Coated Steel	00000000	00000
10"	NPT	Seamless	Black-Coated Steel	00000000	00000
12"	NPT	Seamless	Black-Coated Steel	00000000	00000
18"	NPT	Seamless	Black-Coated Steel	0000000	00000
24"	NPT	Seamless	Black-Coated Steel	0000000	000000
36"	NPT	Seamless	Black-Coated Steel	0000000	000000
1 1/4 Pipe Size—20 Dash Size
2"	NPT	Seamless	Black-Coated Steel	00000000	00000
2 1/2"	NPT	Seamless	Black-Coated Steel	00000000	00000
3"	NPT	Seamless	Black-Coated Steel	00000000	00000
4"	NPT	Seamless	Black-Coated Steel	00000000	00000
5"	NPT	Seamless	Black-Coated Steel	00000000	00000
6"	NPT	Seamless	Black-Coated Steel	00000000	00000
8"	NPT	Seamless	Black-Coated Steel	00000000	00000
10"	NPT	Seamless	Black-Coated Steel	00000000	00000
12"	NPT	Seamless	Black-Coated Steel	00000000	00000
18"	NPT	Seamless	Black-Coated Steel	0000000	000000
24"	NPT	Seamless	Black-Coated Steel	0000000	000000
36"	NPT	Seamless	Black-Coated Steel	0000000	000000
1 1/2 Pipe Size—24 Dash Size
2"	NPT	Seamless	Black-Coated Steel	00000000	00000
2 1/2"	NPT	Seamless	Black-Coated Steel	00000000	00000
3"	NPT	Seamless	Black-Coated Steel	00000000	00000
4"	NPT	Seamless	Black-Coated Steel	00000000	00000
5"	NPT	Seamless	Black-Coated Steel	00000000	00000
6"	NPT	Seamless	Black-Coated Steel	00000000	00000
8"	NPT	Seamless	Black-Coated Steel	00000000	00000
10"	NPT	Seamless	Black-Coated Steel	00000000	00000
12"	NPT	Seamless	Black-Coated Steel	00000000	00000
18"	NPT	Seamless	Black-Coated Steel	0000000	000000
24"	NPT	Seamless	Black-Coated Steel	0000000	000000
36"	NPT	Seamless	Black-Coated Steel	0000000	000000
2 Pipe Size—32 Dash Size
2 1/2"	NPT	Seamless	Black-Coated Steel	00000000	00000
3"	NPT	Seamless	Black-Coated Steel	00000000	00000
4"	NPT	Seamless	Black-Coated Steel	00000000	00000
5"	NPT	Seamless	Black-Coated Steel	00000000	00000
6"	NPT	Seamless	Black-Coated Steel	00000000	00000
8"	NPT	Seamless	Black-Coated Steel	00000000	00000
10"	NPT	Seamless	Black-Coated Steel	00000000	00000
12"	NPT	Seamless	Black-Coated Steel	00000000	000000
18"	NPT	Seamless	Black-Coated Steel	0000000	000000
24"	NPT	Seamless	Black-Coated Steel	0000000	000000
36"	NPT	Seamless	Black-Coated Steel	0000000	000000
2 1/2 Pipe Size—40 Dash Size
3"	NPT	Seamless	Black-Coated Steel	00000000	00000
4"	NPT	Seamless	Black-Coated Steel	00000000	00000
5"	NPT	Seamless	Black-Coated Steel	00000000	00000
6"	NPT	Seamless	Black-Coated Steel	00000000	000000
8"	NPT	Seamless	Black-Coated Steel	00000000	000000
10"	NPT	Seamless	Black-Coated Steel	00000000	000000
12"	NPT	Seamless	Black-Coated Steel	00000000	000000
18"	NPT	Seamless	Black-Coated Steel	0000000	000000
24"	NPT	Seamless	Black-Coated Steel	0000000	000000
3 Pipe Size—48 Dash Size
3"	NPT	Seamless	Black-Coated Steel	00000000	00000
4"	NPT	Seamless	Black-Coated Steel	00000000	000000
5"	NPT	Seamless	Black-Coated Steel	00000000	000000
6"	NPT	Seamless	Black-Coated Steel	00000000	000000
8"	NPT	Seamless	Black-Coated Steel	00000000	000000
10"	NPT	Seamless	Black-Coated Steel	00000000	000000
12"	NPT	Seamless	Black-Coated Steel	00000000	000000
18"	NPT	Seamless	Black-Coated Steel	0000000	000000
24"	NPT	Seamless	Black-Coated Steel	0000000	000000
4 Pipe Size—64 Dash Size
4"	NPT	Seamless	Black-Coated Steel	00000000	000000
5"	NPT	Seamless	Black-Coated Steel	00000000	000000
6"	NPT	Seamless	Black-Coated Steel	00000000	000000
8"	NPT	Seamless	Black-Coated Steel	00000000	000000
10"	NPT	Seamless	Black-Coated Steel	00000000	000000
12"	NPT	Seamless	Black-Coated Steel	00000000	000000
18"	NPT	Seamless	Black-Coated Steel	0000000	000000
24"	NPT	Seamless	Black-Coated Steel	0000000	000000

Extra-Thick-Wall Galvanized Steel Threaded Pipe Nipples and Pipe

Also known as Schedule 160, this pipe has extra-thick walls for excellent strength. It has a galvanized finish that provides better corrosion resistance than our plain steel pipe. Pipe is seamless, so it has a smooth interior for unrestricted flow.

Fully threaded pipe is also known as a close nipple; it is threaded on each end to the center.

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

Fully Threaded

For Use With: Air, Water, Oil, Natural Gas, Steam, Hydraulic Fluid
Specifications Met: ASME B1.20.1, ASTM A106, ASTM A53, ASTM A733
Fittings: Use Class 3000 steel

Pipe Size	Dash Size	Lg.	Thread Type	Construction		Each
1/2	08	1 1/8"	NPT	Seamless	00000000	000000
3/4	12	1 3/8"	NPT	Seamless	00000000	00000
1	16	1 1/2"	NPT	Seamless	00000000	00000
1 1/4	20	1 5/8"	NPT	Seamless	00000000	00000
1 1/2	24	1 3/4"	NPT	Seamless	00000000	00000
2	32	2"	NPT	Seamless	00000000	00000

Threaded on Both Ends

For Use With: Air, Water, Oil, Natural Gas, Steam, Hydraulic Fluid
Specifications Met: ASME B1.20.1, ASTM A106, ASTM A53, ASTM A733
Fittings: Use Class 3000 steel

1/2 Pipe Size—08 Dash Size
Lg.	Thread Type	Construction		Each
1 1/2"	NPT	Seamless	00000000	000000
2"	NPT	Seamless	00000000	00000
3"	NPT	Seamless	00000000	00000
4"	NPT	Seamless	00000000	00000
6"	NPT	Seamless	00000000	00000
3/4 Pipe Size—12 Dash Size
1 1/2"	NPT	Seamless	00000000	00000
2"	NPT	Seamless	00000000	00000
3"	NPT	Seamless	00000000	00000
4"	NPT	Seamless	00000000	00000
6"	NPT	Seamless	00000000	00000
1 Pipe Size—16 Dash Size
2"	NPT	Seamless	00000000	00000
3"	NPT	Seamless	00000000	00000
4"	NPT	Seamless	00000000	00000
6"	NPT	Seamless	00000000	00000

1 1/4 Pipe Size—20 Dash Size
Lg.	Thread Type	Construction		Each
2"	NPT	Seamless	00000000	000000
3"	NPT	Seamless	00000000	00000
4"	NPT	Seamless	00000000	00000
6"	NPT	Seamless	00000000	00000
1 1/2 Pipe Size—24 Dash Size
2"	NPT	Seamless	00000000	00000
3"	NPT	Seamless	00000000	00000
4"	NPT	Seamless	00000000	00000
6"	NPT	Seamless	00000000	00000
2 Pipe Size—32 Dash Size
3"	NPT	Seamless	00000000	00000
4"	NPT	Seamless	00000000	00000
6"	NPT	Seamless	00000000	000000