Aluminum Square-Head Plugs

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	Pipe Size Pipe Size

1/8

1/4

	Thread Type Thread Type

NPT

BSPT

	Material Material

356 Aluminum

6061 Aluminum

	Drive Style Drive Style


External Square	Square

	For Use With For Use With

Air

Water

Oil

	Maximum Pressure Maximum Pressure

150 psi @ 72° F

3,000 psi @ 72° F

	Length Length

	For Pipe Schedule For Pipe Schedule


40	80

	Class Class

150

3000

	Specifications Met Specifications Met

ANSI/ASME

ASTM

Fed. Spec.

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35 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.

Low-Pressure Aluminum Threaded Pipe Fittings

In addition to being lightweight, these aluminum fittings offer good corrosion resistance. Use them in low-pressure flow applications. To prevent cracking, do not tighten more than a 1/4-turn past hand tight.

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

Plugs with Square Drive

For Use With: Air, Oil, Water
Class: 150
Pipe Nipples and Pipe: Use Schedule 40 aluminum
Flanges: Use Class 125 aluminum

NPT Male
Pipe Size	Plug Construction	Max. Pressure		Each
3/8	Solid	150 psi @ 72° F	000000000	00000
1/2	Solid	150 psi @ 72° F	000000000	0000
3/4	Solid	150 psi @ 72° F	000000000	0000
1	Solid	150 psi @ 72° F	000000000	0000
1 1/4	Solid	150 psi @ 72° F	000000000	00000
1 1/2	Solid	150 psi @ 72° F	000000000	00000
2	Solid	150 psi @ 72° F	000000000	00000
2 1/2	Solid	150 psi @ 72° F	000000000	00000
3	Solid	150 psi @ 72° F	000000000	00000
4	Solid	150 psi @ 72° F	000000000	00000

Plugs with External Square Drive

For Use With: Air, Oil, Water
Class:
NPT: 150
Pipe Nipples and Pipe: Use Schedule 40 aluminum
Flanges:
NPT: Use Class 125 aluminum

NPT Male
Pipe Size	Plug Construction	Max. Pressure		Each
1/8	Solid	150 psi @ 72° F	000000000	00000
1/4	Solid	150 psi @ 72° F	000000000	0000
3/8	Solid	150 psi @ 72° F	000000000	0000
1/2	Solid	150 psi @ 72° F	000000000	0000
3/4	Solid	150 psi @ 72° F	000000000	0000
1	Solid	150 psi @ 72° F	000000000	0000
1 1/4	Solid	150 psi @ 72° F	000000000	0000
1 1/2	Solid	150 psi @ 72° F	000000000	0000
2	Solid	150 psi @ 72° F	000000000	0000
2 1/2	Solid	150 psi @ 72° F	000000000	00000
3	Solid	150 psi @ 72° F	000000000	00000
4	Solid	150 psi @ 72° F	000000000	00000
6	Solid	150 psi @ 72° F	000000000	00000
BSPT Male
1/8	Solid	150 psi @ 72° F	0000000	0000
1/4	Solid	150 psi @ 72° F	0000000	0000
3/8	Solid	150 psi @ 72° F	0000000	0000
1/2	Solid	150 psi @ 72° F	0000000	0000
3/4	Solid	150 psi @ 72° F	0000000	0000
1	Solid	150 psi @ 72° F	0000000	00000
1 1/2	Solid	150 psi @ 72° F	0000000	00000
2	Solid	150 psi @ 72° F	0000000	00000

High-Pressure Aluminum Threaded Pipe Fittings

Also known as Class 3000 fittings, these have the highest pressure rating of all the aluminum pipe fittings we offer. They are lightweight with good corrosion resistance.

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

Plugs with External Square Drive

For Use With: Air, Water
Class: 3000
Specifications Met: ANSI/ASME B1.20.1, Fed. Spec. QQ-A-200/8, ASTM B221, ANSI/ASME B16.11
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

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