Aluminum High-Pressure Pipe Fittings

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Fed. Spec. QQ-A-200/8

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Aluminum

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98 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.

About Fire-Fighting Hose Threads

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.

Straight Connectors

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

NPT Female
Pipe Size	Max. Pressure		Each
1/4	3,000 psi @ 72° F	0000000	000000
1/2	3,000 psi @ 72° F	0000000	00000
3/4	3,000 psi @ 72° F	0000000	00000
1	3,000 psi @ 72° F	0000000	00000

Union Straight Connectors

Exploded View

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

NPT Female
Pipe Size	Max. Pressure		Each
1	1,500 psi @ 72° F	00000000	0000000

Straight Adapters

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

NPT Female × Butt Weld
Pipe Size	Max. Pressure		Each
1/4	3,000 psi @ 72° F	0000000	000000
1/2	3,000 psi @ 72° F	0000000	00000
3/4	3,000 psi @ 72° F	0000000	00000
1	3,000 psi @ 72° F	0000000	00000

Bushing Straight Reducing Adapters

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
(A)	(B)	Max. Pressure		Each
NPT Male × NPT Female
1/2	1/4	3,000 psi @ 72° F	0000000	000000
3/4	1/2	3,000 psi @ 72° F	0000000	00000
1	1/2	3,000 psi @ 72° F	0000000	00000
1	3/4	3,000 psi @ 72° F	0000000	00000

Straight Reducers

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
(A)	(B)	Max. Pressure		Each
NPT Female
1/2	1/4	3,000 psi @ 72° F	0000000	000000
3/4	1/2	3,000 psi @ 72° F	0000000	00000
1	1/2	3,000 psi @ 72° F	0000000	00000
1	3/4	3,000 psi @ 72° F	0000000	00000

90° Elbow Connectors

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

NPT Female
Pipe Size	Max. Pressure		Each
1/4	3,000 psi @ 72° F	0000000	000000
1/2	3,000 psi @ 72° F	0000000	00000
3/4	3,000 psi @ 72° F	0000000	00000
1	3,000 psi @ 72° F	0000000	00000

90° Elbow Adapters

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

NPT Female × NPT Male
Pipe Size	Max. Pressure		Each
1/4	3,000 psi @ 72° F	0000000	000000
1/2	3,000 psi @ 72° F	0000000	00000

45° Elbow Connectors

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

NPT Female
Pipe Size	Max. Pressure		Each
1/4	3,000 psi @ 72° F	0000000	000000
1/2	3,000 psi @ 72° F	0000000	00000
3/4	3,000 psi @ 72° F	0000000	00000
1	3,000 psi @ 72° F	0000000	00000

Tee Connectors

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

NPT Female
Pipe Size	Max. Pressure		Each
1/4	3,000 psi @ 72° F	0000000	000000
1/2	3,000 psi @ 72° F	0000000	00000
3/4	3,000 psi @ 72° F	0000000	00000
1	3,000 psi @ 72° F	0000000	000000

Caps

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

NPT Female
Pipe Size	Max. Pressure		Each
1/4	3,000 psi @ 72° F	0000000	000000
1/2	3,000 psi @ 72° F	0000000	00000
3/4	3,000 psi @ 72° F	0000000	00000
1	3,000 psi @ 72° F	0000000	00000

Plugs with External Hex Drive

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

NPT Male
Pipe Size	Plug Construction	Max. Pressure		Each
1/4	Solid	3,000 psi @ 72° F	0000000	000000
1/2	Solid	3,000 psi @ 72° F	0000000	00000
3/4	Solid	3,000 psi @ 72° F	0000000	00000
1	Solid	3,000 psi @ 72° F	0000000	00000

Plugs with External Square Drive

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

NPT Male
Pipe Size	Plug Construction	Max. Pressure		Each
1/4	Solid	3,000 psi @ 72° F	0000000	000000
1/2	Solid	3,000 psi @ 72° F	0000000	00000
3/4	Solid	3,000 psi @ 72° F	0000000	00000
1	Solid	3,000 psi @ 72° F	0000000	00000

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.

Fully Threaded

For Use With: Air, Oil, Water
Specifications Met: ASME B1.20.1, ASTM B241
Fittings: Use Class 3000 aluminum

Pipe Size	Lg.	Thread Type	Construction		Each
1/4	7/8"	NPT	Seamless	0000000	00000
1/2	1 1/8"	NPT	Seamless	0000000	0000
3/4	1 3/8"	NPT	Seamless	0000000	0000
1	1 1/2"	NPT	Seamless	0000000	0000

Threaded on Both Ends

For Use With: Air, Oil, Water
Specifications Met: ASME B1.20.1, ASTM B241
Fittings: Use Class 3000 aluminum

1/4 Pipe Size
Lg.	Thread Type	Construction		Each
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.

Straight Reducers

For Use With: Air, Oil, Water
Specifications Met: ASTM B361, ASME B16.9
Pipe: Use Schedule 80 aluminum

Pipe Size		Wall Thick.
(A)	(B)	(A)	(B)	Construction		Each
2	1 1/2	0.218"	0.2"	Seamless	0000000	0000000
3	2	0.3"	0.218"	Seamless	0000000	000000
4	3	0.337"	0.3"	Seamless	0000000	000000

90° Elbow Connectors

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

45° Elbow Connectors

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 1/2	0.2"	Seamless	0000000	0000000
2	0.218"	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.

Straight Adapters, NH/NST Male Threaded Hose × NPT Male Threaded Hose

Aluminum
Fire Hose Trade Size	Pipe Size		Each
1 1/2	1 1/2	0000000	000000

Straight Adapters, NPT Male Threaded Hose × NPSH Male Threaded Hose

Aluminum
Pipe Size		Each
1 1/2	0000000	000000

Straight Adapters, NPT Male Threaded Hose × NPSH Female Threaded Hose

Aluminum
Pipe Size		Each
2	0000000	000000

Straight Adapters (Swivels Until Tightened), NPT Female Threaded Hose × NH/NST Female Threaded Hose

Aluminum
Pipe Size	Fire Hose Trade Size		Each
2 1/2	2 1/2	0000000	0000000

Straight Adapters (Swivels Until Tightened), NPT Female Threaded Hose × NPSH Female Threaded Hose

Aluminum
Pipe Size		Each
1 1/2	0000000	000000

Straight Connectors (Swivels Until Tightened), NH/NST Female Threaded Hose

Aluminum
Fire Hose Trade Size		Each
1 1/2	0000000	0000000

Straight Connectors (Swivels Until Tightened), NPSH Female Threaded Hose

Aluminum
Pipe Size		Each
1 1/2	0000000	0000000

Straight Reducing Adapters, NH/NST Male Threaded Hose × NPT Male Threaded Hose

Fire Hose Trade Size
(A)	(B)		Each
Aluminum
2 1/2	2	0000000	000000

Straight Reducing Adapters, NH/NST Male Threaded Hose × NH/NST Female Threaded Hose

Fire Hose Trade Size
(A)	(B)		Each
Aluminum
1	1 1/2	0000000	000000
1 1/2	1	0000000	00000
1 1/2	2 1/2	0000000	00000
2 1/2	4 1/2	0000000	000000

Straight Reducing Adapters, NPT Male Threaded Hose × NH/NST Female Threaded Hose

Pipe Size
(A)	(B)		Each
Aluminum
2	2 1/2	0000000	000000
4	4 1/2	0000000	000000

Straight Reducing Adapters, NPSH Male Threaded Hose × NPSH Female Threaded Hose

Pipe Size
(A)	(B)		Each
Aluminum
1 1/2	2	0000000	000000