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.
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About Fire-Fighting Hose Threads
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High-Pressure Aluminum Threaded Pipe Fittings
Also known as Pressure Class 3000 fittings, these have the highest pressure rating of all the aluminum pipe fittings we offer. They are lightweight with good corrosion resistance.
Union connectors separate into three pieces so you can access your line without unthreading pipe connections.
Threaded female x butt weld straight adapters are also known as half couplings.
Female x male 90° elbow adapters are also known as street elbows.
For technical drawings and 3-D models, click on a part number.
![](/prerenderstable/mvPRE/contents/gfx/imagecache/386/3867t62-@halfx_637666026577918765.png?ver=imagenotfound)
- For Use With: Air, Water
- Pressure Class : 3000
- Specifications Met: Fed. Spec. QQ-A-200/8, ASTM B221, ASME B1.20.1
- Pipe Nipples and Pipe: Use Schedule 80 aluminum
![](/prerenderstable/mvPRE/contents/gfx/imagecache/386/3867t521-@halfx_637666035701209960.png?ver=imagenotfound)
- For Use With: Air, Water
- Pressure Class : 3000
- Specifications Met: Fed. Spec. QQ-A-200/8, ASTM B221, ASME B1.20.1
- Pipe Nipples and Pipe: Use Schedule 80 aluminum
Pipe Size | Max. Pressure | Each | |
NPT Female | |||
---|---|---|---|
1 | 1,500 psi @ 72° F | 00000000 | 0000000 |
![](/prerenderstable/mvPRE/contents/gfx/imagecache/386/3867t72-@halfx_637666189953229866.png?ver=imagenotfound)
- For Use With: Air, Water
- Pressure Class : 3000
- Specifications Met: Fed. Spec. QQ-A-200/8, ASTM B221, ASME B1.20.1
- Pipe Nipples and Pipe: Use Schedule 80 aluminum
![](/prerenderstable/mvPRE/contents/gfx/imagecache/386/3867t93--8459abb50931631025123-p9@halfx_637666039250818442.png?ver=imagenotfound)
- For Use With: Air, Water
- Pressure Class : 3000
- Specifications Met: Fed. Spec. QQ-A-200/8, ASTM B221, ASME B1.20.1
- Pipe Nipples and Pipe: Use Schedule 80 aluminum
![](/prerenderstable/mvPRE/contents/gfx/imagecache/386/3867t75--79c7cdaed001631025027-p9@halfx_637666038303770938.png?ver=imagenotfound)
- For Use With: Air, Water
- Pressure Class : 3000
- Specifications Met: Fed. Spec. QQ-A-200/8, ASTM B221, ASME B1.20.1
- Pipe Nipples and Pipe: Use Schedule 80 aluminum
![](/prerenderstable/mvPRE/contents/gfx/imagecache/386/3867t12-@halfx_637666006901657454.png?ver=imagenotfound)
- For Use With: Air, Water
- Pressure Class : 3000
- Specifications Met: Fed. Spec. QQ-A-200/8, ASTM B247, ASME B1.20.1
- Pipe Nipples and Pipe: Use Schedule 80 aluminum
![](/prerenderstable/mvPRE/contents/gfx/imagecache/386/3867t22-@halfx_637666010595093192.png?ver=imagenotfound)
- For Use With: Air, Water
- Pressure Class : 3000
- Specifications Met: Fed. Spec. QQ-A-200/8, ASTM B247, ASME B1.20.1
- Pipe Nipples and Pipe: Use Schedule 80 aluminum
![](/prerenderstable/mvPRE/contents/gfx/imagecache/386/3867t42-@halfx_637666192206851718.png?ver=imagenotfound)
- For Use With: Air, Water
- Pressure Class : 3000
- Specifications Met: Fed. Spec. QQ-A-200/8, ASTM B247, ASME B1.20.1
- Pipe Nipples and Pipe: Use Schedule 80 aluminum
![](/prerenderstable/mvPRE/contents/gfx/imagecache/386/3867t82-@halfx_637666034099774136.png?ver=imagenotfound)
- For Use With: Air, Water
- Pressure Class : 3000
- Specifications Met: Fed. Spec. QQ-A-200/8, ASTM B221, ASME B1.20.1
- Pipe Nipples and Pipe: Use Schedule 80 aluminum
![](/prerenderstable/mvPRE/contents/gfx/imagecache/386/3867t66-@halfx_637666027170525846.png?ver=imagenotfound)
- For Use With: Air, Water
- Pressure Class : 3000
- Specifications Met: Fed. Spec. QQ-A-200/8, ASTM B221, ASME B1.20.1
- Pipe Nipples and Pipe: Use Schedule 80 aluminum
![](/prerenderstable/mvPRE/contents/gfx/imagecache/386/3867t56-@halfx_637666025343631918.png?ver=imagenotfound)
- For Use With: Air, Water
- Pressure Class : 3000
- Specifications Met: Fed. Spec. QQ-A-200/8, ASTM B221, ASME B1.20.1
- Pipe Nipples and Pipe: Use Schedule 80 aluminum
Thick-Wall Aluminum Threaded Pipe Nipples and Pipe
Also known as Schedule 80, this pipe has extra-thick walls to handle high-pressure applications. It is seamless so it has a smooth interior for unrestricted flow. Pipe is aluminum, which is lightweight with good corrosion resistance.
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.
![](/prerenderstable/mvPRE/contents/gfx/imagecache/215/2155k19-@halfx_637666214770977827.png?ver=imagenotfound)
- For Use With: Air, Oil, Water
- Specifications Met: ASME B1.20.1, ASTM B241
- Fittings: Use Class 3000 aluminum
Lg. | Thread Type | Construction | Each | |
1/4 Pipe Size | ||||
---|---|---|---|---|
2" | NPT | Seamless | 0000000 | 000000 |
3" | NPT | Seamless | 0000000 | 00000 |
4" | NPT | Seamless | 0000000 | 00000 |
6" | NPT | Seamless | 0000000 | 00000 |
12" | NPT | Seamless | 0000000 | 00000 |
1/2 Pipe Size | ||||
2" | NPT | Seamless | 0000000 | 0000 |
3" | NPT | Seamless | 0000000 | 00000 |
4" | NPT | Seamless | 0000000 | 00000 |
6" | NPT | Seamless | 0000000 | 00000 |
12" | NPT | Seamless | 0000000 | 00000 |
3/4 Pipe Size | ||||
2" | NPT | Seamless | 0000000 | 00000 |
3" | NPT | Seamless | 0000000 | 00000 |
4" | NPT | Seamless | 0000000 | 00000 |
6" | NPT | Seamless | 0000000 | 00000 |
12" | NPT | Seamless | 0000000 | 00000 |
1 Pipe Size | ||||
2" | NPT | Seamless | 0000000 | 0000 |
3" | NPT | Seamless | 0000000 | 00000 |
4" | NPT | Seamless | 0000000 | 00000 |
6" | NPT | Seamless | 0000000 | 00000 |
12" | NPT | Seamless | 0000000 | 00000 |
Thick-Wall Butt-Weld Aluminum Unthreaded Pipe Fittings
Thick walls give these Schedule 80 fittings excellent strength. They have beveled ends that, when flush to pipe, create a trough for a strong weld that permits maximum flow. Fittings are aluminum, which is lightweight with good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
![](/prerenderstable/mvPRE/contents/gfx/imagecache/468/4684t12-@halfx_637666984227346833.png?ver=imagenotfound)
- For Use With: Air, Oil, Water
- Specifications Met: ASTM B361, ASME B16.9
- Pipe: Use Schedule 80 aluminum
Pipe Size | Wall Thick. | Construction | Each | |
1/2 | 0.147" | Seamless | 0000000 | 0000000 |
3/4 | 0.154" | Seamless | 0000000 | 000000 |
1 | 0.179" | Seamless | 0000000 | 000000 |
1 1/4 | 0.191" | Seamless | 0000000 | 000000 |
1 1/2 | 0.2" | Seamless | 0000000 | 000000 |
2 | 0.218" | Seamless | 0000000 | 000000 |
2 1/2 | 0.276" | Seamless | 0000000 | 000000 |
3 | 0.3" | Seamless | 0000000 | 000000 |
4 | 0.337" | Seamless | 0000000 | 000000 |
Rocker-Lug Fire-Fighting Hose Fittings
The rocker lugs on these fittings allow for easy gripping, so you can quickly connect to fire hydrants and washdown equipment. Tighten with a hook-style spanner wrench (sold separately).
Fittings that swivel until tightened rotate to help prevent kinking during installation.
NH/NST (National Hose/National Standard) threads are only compatible with other NH/NST threads. Male NPSH (National Pipe Straight Hose) threads are compatible with female NPSH threads. Female NPSH threads are compatible with male NPSH, NPT, NPTF, and NPSM threads.
Aluminum fittings are more lightweight than brass fittings. They have good abrasion and corrosion resistance.
For technical drawings and 3-D models, click on a part number.
![](/prerenderstable/mvPRE/contents/gfx/imagecache/652/6524t28-@halfx_zwvix_1720442457.png?ver=imagenotfound)
Fire Hose Trade Size | Pipe Size | Each | |
Aluminum | |||
---|---|---|---|
1 1/2 | 1 1/2 | 0000000 | 000000 |
![](/prerenderstable/mvPRE/contents/gfx/imagecache/652/6524t31_be21f8ba-3915-44c7-912c-e5956d2e6311@halfx_py434_1718904329.png?ver=imagenotfound)
Pipe Size | Each | |
Aluminum | ||
---|---|---|
1 1/2 | 0000000 | 000000 |
![](/prerenderstable/mvPRE/contents/gfx/imagecache/652/6524t35_648602b1-11aa-4676-be6a-755b4729c80d@halfx_xrp16_1718904460.png?ver=imagenotfound)
Pipe Size | Each | |
Aluminum | ||
---|---|---|
2 | 0000000 | 000000 |
![](/prerenderstable/mvPRE/contents/gfx/imagecache/652/6524t44_1c567f01-61ee-453c-bb21-1ab0174aab54@halfx_d2lz4_1718904571.png?ver=imagenotfound)
Pipe Size | Fire Hose Trade Size | Each | |
Aluminum | |||
---|---|---|---|
2 1/2 | 2 1/2 | 0000000 | 0000000 |
![](/prerenderstable/mvPRE/contents/gfx/imagecache/652/6524t43_040e2586-59c0-410e-bd27-87d376bce8eb@halfx_59isf_1718904546.png?ver=imagenotfound)
Pipe Size | Each | |
Aluminum | ||
---|---|---|
1 1/2 | 0000000 | 000000 |
![](/prerenderstable/mvPRE/contents/gfx/imagecache/652/6524t42_ab0f9f83-b02e-4a02-8a1a-d310eaf02f21@halfx_zaxee_1718904147.png?ver=imagenotfound)
Fire Hose Trade Size | Each | |
Aluminum | ||
---|---|---|
1 1/2 | 0000000 | 0000000 |
![](/prerenderstable/mvPRE/contents/gfx/imagecache/652/6524t41_12ee4cd4-7bd7-4597-8ed2-34abce4cb841@halfx_juetf_1718904167.png?ver=imagenotfound)
Pipe Size | Each | |
Aluminum | ||
---|---|---|
1 1/2 | 0000000 | 0000000 |
![](/prerenderstable/mvPRE/contents/gfx/imagecache/652/6524t29-@halfx_qd9pa_1720443786.png?ver=imagenotfound)
Fire Hose Trade Size | |||
---|---|---|---|
(A) | (B) | Each | |
Aluminum | |||
2 1/2 | 2 | 0000000 | 000000 |
![](/prerenderstable/mvPRE/contents/gfx/imagecache/652/6524t12c1-c01h-digital@halfx_637085840610162607.png?ver=imagenotfound)
Pipe Size | |||
---|---|---|---|
(A) | (B) | Each | |
Aluminum | |||
1 1/2 | 2 | 0000000 | 000000 |