	Pipe Size Pipe Size

3/8

1/2

3/4

	Threading Threading

	Threaded on Both Ends
	Fully Threaded

	Length Length

	For Use With For Use With

	Specifications Met Specifications Met

ASTM B43

ASTM B456

ASTM B687

	Wall Thickness Wall Thickness

	ID ID

	OD OD

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

DFARS Specialty Metals
COTS-Exempt

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71 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.

Standard-Wall Chrome-Plated Brass Threaded Pipe Nipples and Pipe

The polished chrome plating gives this brass pipe a bright, shiny appearance and provides extra corrosion resistance. Also known as Schedule 40 pipe, it is commonly used in low-pressure applications. 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, Natural Gas, Oil, Steam, Water
Specifications Met: ASTM B43, ASTM B687, ASTM B456
Fittings: Use Class 125 brass

Pipe Size	Lg.	Thread Type	Construction		Each
1/8	3/4"	NPT	Seamless	00000000	00000
1/4	7/8"	NPT	Seamless	00000000	0000
3/8	1"	NPT	Seamless	00000000	0000
1/2	1 1/8"	NPT	Seamless	00000000	0000
3/4	1 3/8"	NPT	Seamless	00000000	00000
1	1 1/2"	NPT	Seamless	00000000	00000

Threaded on Both Ends

For Use With: Air, Natural Gas, Oil, Steam, Water
Specifications Met: ASTM B43, ASTM B687, ASTM B456
Fittings: Use Class 125 brass

1/8 Pipe Size
Lg.	Thread Type	Construction		Each
1 1/2"	NPT	Seamless	00000000	00000
2"	NPT	Seamless	00000000	0000
3"	NPT	Seamless	00000000	0000
3 1/2"	NPT	Seamless	00000000	0000
4"	NPT	Seamless	00000000	00000
4 1/2"	NPT	Seamless	00000000	00000
5"	NPT	Seamless	00000000	00000
6"	NPT	Seamless	00000000	00000
8"	NPT	Seamless	00000000	00000
10"	NPT	Seamless	00000000	00000
12"	NPT	Seamless	00000000	00000
1/4 Pipe Size
1 1/2"	NPT	Seamless	00000000	0000
2"	NPT	Seamless	00000000	0000
3"	NPT	Seamless	00000000	00000
3 1/2"	NPT	Seamless	00000000	00000
4"	NPT	Seamless	00000000	00000
4 1/2"	NPT	Seamless	00000000	00000
5"	NPT	Seamless	00000000	00000
6"	NPT	Seamless	00000000	00000
8"	NPT	Seamless	00000000	00000
10"	NPT	Seamless	00000000	00000
12"	NPT	Seamless	00000000	00000
3/8 Pipe Size
1 1/2"	NPT	Seamless	00000000	0000
2"	NPT	Seamless	00000000	0000
3"	NPT	Seamless	00000000	0000
3 1/2"	NPT	Seamless	00000000	00000
4"	NPT	Seamless	00000000	00000
4 1/2"	NPT	Seamless	00000000	00000
5"	NPT	Seamless	00000000	00000
6"	NPT	Seamless	00000000	00000
8"	NPT	Seamless	00000000	00000
10"	NPT	Seamless	00000000	00000
12"	NPT	Seamless	00000000	00000

1/2 Pipe Size
Lg.	Thread Type	Construction		Each
1 1/2"	NPT	Seamless	00000000	00000
2"	NPT	Seamless	00000000	0000
3"	NPT	Seamless	00000000	00000
3 1/2"	NPT	Seamless	00000000	00000
4"	NPT	Seamless	00000000	00000
4 1/2"	NPT	Seamless	00000000	00000
5"	NPT	Seamless	00000000	00000
6"	NPT	Seamless	00000000	00000
8"	NPT	Seamless	00000000	00000
10"	NPT	Seamless	00000000	00000
12"	NPT	Seamless	00000000	00000
3/4 Pipe Size
1 1/2"	NPT	Seamless	00000000	00000
2"	NPT	Seamless	00000000	00000
3"	NPT	Seamless	00000000	00000
3 1/2"	NPT	Seamless	00000000	00000
4"	NPT	Seamless	00000000	00000
4 1/2"	NPT	Seamless	00000000	00000
5"	NPT	Seamless	00000000	00000
6"	NPT	Seamless	00000000	00000
8"	NPT	Seamless	00000000	00000
10"	NPT	Seamless	00000000	00000
12"	NPT	Seamless	00000000	00000
1 Pipe Size
2"	NPT	Seamless	00000000	00000
3"	NPT	Seamless	00000000	00000
3 1/2"	NPT	Seamless	00000000	00000
4"	NPT	Seamless	00000000	00000
4 1/2"	NPT	Seamless	00000000	00000
5"	NPT	Seamless	00000000	00000
6"	NPT	Seamless	00000000	00000
8"	NPT	Seamless	00000000	00000
10"	NPT	Seamless	00000000	00000
12"	NPT	Seamless	00000000	000000