Customers who purchased this item also purchased:

AN971 Aluminum Male AN Weld Fitting

AN816 Male NPT Pipe to Male AN Adapter

Aluminum Swivel Hose End for Steel Braided Hose, Blue - Red

Female Aluminum AN Weld Bung (O-ring Port)

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Female Aluminum NPT Weld Bung

Add an NPT port to any aluminum tank with these female NPT threaded fittings. A 1/4" deep flange at the base makes welding easier. Uncoated 6061-T6 aluminum. Sold individually.

NPT Thread	Outside Diameter at Base	Outside Diameter of Flange	Part No.
1/8	3/4"	1/2"	3228-125-02
1/4	1"	3/4"	3228-125-04
3/8	1 3/16"	7/8"	3228-125-06
1/2	1 3/8"	1"	3228-125-08
3/4	1 5/8"	1 1/4"	3228-125-12
1	2"	1 5/8"	3228-125-16

Note: NPT nomenclature can be confusing! The nominal size refers to the inside diameter of the pipe, not the outside diameter of the threads. If you are not sure what size you need, check in our Threaded Plumbing Fitting Identification Guide.

NPT fittings can also cause concern because of the way they fit together. The threads are tapered to seal by an interference fit, which means that a properly-sized NPT fitting should never bottom out in the port. The male fitting should "jam" when screwed about halfway in. More information and torque recommendations can be found in our Guide to Using NPT Fittings.

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Order Qty

Part No.

Desc.

Price

Stock Status

3228-125-02
Condition: New
SKU: 47022

Female Aluminum Weld Bung, 1/8 NPT

1 to 7: $6.29 8 to 59: $5.77 60 & up: $5.25

In Stock

3228-125-04
Condition: New
SKU: 47023

Female Aluminum Weld Bung, 1/4 NPT

1 to 7: $6.39 8 to 59: $5.86 60 to 499: $5.33 500 & up: call

In Stock

3228-125-06
Condition: New
SKU: 47024

Female Aluminum Weld Bung, 3/8 NPT

1 to 7: $6.74 8 to 59: $6.18 60 & up: $5.62

In Stock

3228-125-08
Condition: New
SKU: 47025

Female Aluminum Weld Bung, 1/2 NPT

1 to 7: $4.44 8 & up: $4.20

In Stock

3228-125-12
Condition: New
SKU: 47026

Female Aluminum Weld Bung, 3/4 NPT

1 to 7: $8.59 8 to 59: $7.88 60 & up: $7.16

In Stock

3228-125-16
Condition: New
SKU: 47027

Female Aluminum Weld Bung, 1" NPT

1 to 5: $10.04 6 to 35: $9.21 36 & up: $8.37

In Stock

Customers who purchased this item also purchased
AN932 Allen Head Pipe Plug	AN971 Aluminum Male AN Weld Fitting	AN816 Male NPT Pipe to Male AN Adapter	Aluminum Swivel Hose End for Steel Braided Hose, Blue - Red	Female Aluminum AN Weld Bung (O-ring Port)

Female Aluminum NPT Weld Bung

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Related Product Groups

Female Threaded Weld Bungs and Male Threaded Weld Fittings

Male NPT to AN Hose Ends

NPT Adapters & Fittings