Schedule 160 Nipples | McMaster-Carr

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169 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.

For Use With: Air, Water, Hydraulic Fluid, Natural Gas, Steam, Oil
Specifications Met: ASTM A312
Fittings: Use Class 6000 or Schedule 160 stainless steel

With an extra-thick wall, this Schedule 160 pipe is the strongest stainless steel pipe we offer. Weld it to fittings and additional lengths of pipe. Welded connections are stronger than threaded connections and less likely to leak. Pipe is seamless, which provides a smooth interior for unrestricted flow.

304 stainless steel pipe has very good corrosion resistance. 316 stainless steel pipe has excellent corrosion resistance.

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

			304 Stainless Steel		316 Stainless Steel
Lg., ft.	Wall Thick.	Construction		Each		Each
1/2 Pipe Size—08 Dash Size
1	0.187"	Seamless	0000000	000000	0000000	000000
3	0.187"	Seamless	0000000	00000	0000000	000000
6	0.187"	Seamless	0000000	000000	0000000	000000
3/4 Pipe Size—12 Dash Size
1	0.218"	Seamless	0000000	00000	0000000	00000
3	0.218"	Seamless	0000000	000000	0000000	000000
6	0.218"	Seamless	0000000	000000	0000000	000000
1 Pipe Size—16 Dash Size
1	0.25"	Seamless	0000000	00000	0000000	00000
3	0.25"	Seamless	0000000	000000	0000000	000000
6	0.25"	Seamless	0000000	000000	0000000	000000
1 1/2 Pipe Size—24 Dash Size
1	0.281"	Seamless	0000000	00000	0000000	000000
3	0.281"	Seamless	0000000	000000	0000000	000000
6	0.281"	Seamless	0000000	000000	0000000	000000
2 Pipe Size—32 Dash Size
1	0.344"	Seamless	0000000	000000	0000000	000000
3	0.344"	Seamless	0000000	000000	0000000	000000
6	0.344"	Seamless	0000000	000000	0000000	000000

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. A phosphate coating gives this pipe some corrosion resistance, but it shouldn’t be used in corrosive 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	Phosphate-Coated Steel	00000000	00000
3/4	12	1 3/8"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
1	16	1 1/2"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
1 1/4	20	1 5/8"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
1 1/2	24	1 3/4"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
2	32	2"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
2 1/2	40	2 1/2"	NPT	Seamless	Phosphate-Coated Steel	00000000	000000
3	48	2 5/8"	NPT	Seamless	Phosphate-Coated Steel	00000000	000000
4	64	2 7/8"	NPT	Seamless	Phosphate-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	Phosphate-Coated Steel	00000000	000000
2"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
2 1/2"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
3"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
4"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
5"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
6"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
8"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
10"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
12"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
18"	NPT	Seamless	Phosphate-Coated Steel	0000000	00000
24"	NPT	Seamless	Phosphate-Coated Steel	0000000	00000
36"	NPT	Seamless	Phosphate-Coated Steel	0000000	000000
3/4 Pipe Size—12 Dash Size
1 1/2"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
2"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
2 1/2"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
3"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
4"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
5"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
6"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
8"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
10"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
12"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
18"	NPT	Seamless	Phosphate-Coated Steel	0000000	000000
24"	NPT	Seamless	Phosphate-Coated Steel	0000000	000000
36"	NPT	Seamless	Phosphate-Coated Steel	0000000	000000
1 Pipe Size—16 Dash Size
2"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
2 1/2"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
3"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
4"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
5"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
6"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
8"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
10"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
12"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
18"	NPT	Seamless	Phosphate-Coated Steel	0000000	000000
24"	NPT	Seamless	Phosphate-Coated Steel	0000000	000000
36"	NPT	Seamless	Phosphate-Coated Steel	0000000	000000
1 1/4 Pipe Size—20 Dash Size
2"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
2 1/2"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
3"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
4"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
5"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
6"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
8"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
10"	NPT	Seamless	Phosphate-Coated Steel	00000000	000000
12"	NPT	Seamless	Phosphate-Coated Steel	00000000	000000
18"	NPT	Seamless	Phosphate-Coated Steel	0000000	000000
24"	NPT	Seamless	Phosphate-Coated Steel	0000000	000000
36"	NPT	Seamless	Phosphate-Coated Steel	0000000	000000
1 1/2 Pipe Size—24 Dash Size
2"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
2 1/2"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
3"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
4"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
5"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
6"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
8"	NPT	Seamless	Phosphate-Coated Steel	00000000	000000
10"	NPT	Seamless	Phosphate-Coated Steel	00000000	000000
12"	NPT	Seamless	Phosphate-Coated Steel	00000000	000000
18"	NPT	Seamless	Phosphate-Coated Steel	0000000	000000
24"	NPT	Seamless	Phosphate-Coated Steel	0000000	000000
36"	NPT	Seamless	Phosphate-Coated Steel	0000000	000000
2 Pipe Size—32 Dash Size
2 1/2"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
3"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
4"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
5"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
6"	NPT	Seamless	Phosphate-Coated Steel	00000000	00000
8"	NPT	Seamless	Phosphate-Coated Steel	00000000	000000
10"	NPT	Seamless	Phosphate-Coated Steel	00000000	000000
12"	NPT	Seamless	Phosphate-Coated Steel	00000000	000000
18"	NPT	Seamless	Phosphate-Coated Steel	0000000	000000
24"	NPT	Seamless	Phosphate-Coated Steel	0000000	000000
36"	NPT	Seamless	Phosphate-Coated Steel	0000000	000000
2 1/2 Pipe Size—40 Dash Size
3"	NPT	Seamless	Phosphate-Coated Steel	00000000	000000
4"	NPT	Seamless	Phosphate-Coated Steel	00000000	000000
5"	NPT	Seamless	Phosphate-Coated Steel	00000000	000000
6"	NPT	Seamless	Phosphate-Coated Steel	00000000	000000
8"	NPT	Seamless	Phosphate-Coated Steel	00000000	000000
10"	NPT	Seamless	Phosphate-Coated Steel	00000000	000000
12"	NPT	Seamless	Phosphate-Coated Steel	00000000	000000
18"	NPT	Seamless	Phosphate-Coated Steel	0000000	000000
24"	NPT	Seamless	Phosphate-Coated Steel	0000000	000000
3 Pipe Size—48 Dash Size
3"	NPT	Seamless	Phosphate-Coated Steel	00000000	000000
4"	NPT	Seamless	Phosphate-Coated Steel	00000000	000000
5"	NPT	Seamless	Phosphate-Coated Steel	00000000	000000
6"	NPT	Seamless	Phosphate-Coated Steel	00000000	000000
8"	NPT	Seamless	Phosphate-Coated Steel	00000000	000000
10"	NPT	Seamless	Phosphate-Coated Steel	00000000	000000
12"	NPT	Seamless	Phosphate-Coated Steel	00000000	000000
18"	NPT	Seamless	Phosphate-Coated Steel	0000000	000000
24"	NPT	Seamless	Phosphate-Coated Steel	0000000	000000
4 Pipe Size—64 Dash Size
4"	NPT	Seamless	Phosphate-Coated Steel	00000000	000000
5"	NPT	Seamless	Phosphate-Coated Steel	00000000	000000
6"	NPT	Seamless	Phosphate-Coated Steel	00000000	000000
8"	NPT	Seamless	Phosphate-Coated Steel	00000000	000000
10"	NPT	Seamless	Phosphate-Coated Steel	00000000	000000
12"	NPT	Seamless	Phosphate-Coated Steel	00000000	000000
18"	NPT	Seamless	Phosphate-Coated Steel	0000000	000000
24"	NPT	Seamless	Phosphate-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, ASTM B633
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, ASTM B633
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
2"	NPT	Seamless	00000000	00000
3"	NPT	Seamless	00000000	00000
4"	NPT	Seamless	00000000	00000
6"	NPT	Seamless	00000000	000000
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	000000
2 Pipe Size—32 Dash Size
3"	NPT	Seamless	00000000	00000
4"	NPT	Seamless	00000000	000000
6"	NPT	Seamless	00000000	000000

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How to Identify and Measure Fittings

Extra-Thick-Wall Stainless Steel Unthreaded Pipe

Extra-Thick-Wall Steel Threaded Pipe Nipples and Pipe

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