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NPT Adapters & Fittings

We carry a complete selection of NPT fittings and NPT plumbing adapters. These adapters are manufactured to JIC and SAE specifications. Equivalent AN numbers are shown for reference where applicable.

We recommend using steel fittings in brake and clutch systems. Steel, brass, or aluminum fittings may be used in oil systems, fuel systems, gauge lines, or any other application below about 200 psi.

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.

Recent Top Seller for this product group

Female NPT Pipe to Male AN Adapter

Female NPT Pipe to Male AN Adapter

These steel adapters have female NPT threads in one end and a male AN fitting on the other.

Image
Part No.
Description
Price
Status
AN816 Male NPT Pipe to Male AN Adapter

3250-Size-Size 

AN816 Male NPT Pipe to Male AN Adapter

 
5.0
$1.99
to
$24.99*
In Stock
AN816 Male NPT Pipe to Male AN Adapter, Black Aluminum

3250-001-Size-Size 

AN816 Male NPT Pipe to Male AN Adapter, Black Aluminum

 
5.0
$3.39
to
$47.49
Some
In Stock
Male NPT Aluminum Swivel Hose End, Straight

3497-050-Size-Size 

Male NPT Aluminum Swivel Hose End, Straight

$18.99
to
$33.99
In Stock
AN823 Male NPT Pipe to Male AN 45' Elbow

3251-Size-Size 

AN823 Male NPT Pipe to Male AN 45' Elbow

 
5.0
$6.29
to
$26.49*
In Stock
Male NPT Forged Blue Aluminum Swivel Hose End, 45 Degree

3497-051-Size-Size 

Male NPT Forged Blue Aluminum Swivel Hose End, 45 Degree

$30.99
to
$51.99
In Stock
AN822 Male NPT Pipe to Male AN 90' Elbow

3253-Size-Size 

AN822 Male NPT Pipe to Male AN 90' Elbow

 
5.0
$4.99
to
$41.99*
In Stock
AN822 Male NPT Pipe to Male AN 90' Elbow, Black Aluminum

3493-053-Size-Size 

AN822 Male NPT Pipe to Male AN 90' Elbow, Black Aluminum

$9.99In Stock
Male NPT Pipe Swivel to Male AN 90 Elbow, Blue Aluminum

3497-040-Size-Size 

Male NPT Pipe Swivel to Male AN 90 Elbow, Blue Aluminum

 
5.0
$26.49
to
$41.99
In Stock
Male NPT Forged Blue Aluminum Swivel Hose End, 90 Degree

3497-052-Size-Size 

Male NPT Forged Blue Aluminum Swivel Hose End, 90 Degree

$30.99
to
$51.99
In Stock
Female NPT Pipe to Male AN Adapter

3254-Size-Size 

Female NPT Pipe to Male AN Adapter

 
5.0
$3.89
to
$26.49*
In Stock
Male NPT Pipe to Female AN Swivel Adapter, Aluminum

3497-043-Size-Size 

Male NPT Pipe to Female AN Swivel Adapter, Aluminum

 
4.5
$12.19
to
$27.29
In Stock
Male NPT Pipe to Female AN Swivel Adapter, Stainless Steel

3497-044-Size-Size 

Male NPT Pipe to Female AN Swivel Adapter, Stainless Steel

 
5.0
$11.99In Stock
Male Run Tee (Male NPT on Run to Male AN)

3281-Size-Size 

Male Run Tee (Male NPT on Run to Male AN)

 
5.0
$7.29
to
$38.99*
In Stock
Male Branch Tee (Male NPT on Branch to Male AN), Aluminum

3286-Size-Size 

Male Branch Tee (Male NPT on Branch to Male AN), Aluminum

 
5.0
$12.99
to
$20.99*
In Stock
AN911 Male NPT to Male NPT Pipe Nipple, Aluminum

3255-Size 

AN911 Male NPT to Male NPT Pipe Nipple, Aluminum

 
5.0
$2.99
to
$29.99*
In Stock
Close Nipple, 1/8 NPT Brass

3210-001 

Close Nipple, 1/8 NPT Brass

$1.19In Stock
Close Nipple, 1/4 NPT Brass

3211-Material 

Close Nipple, 1/4 NPT Brass

$1.49*In Stock
Close Nipple, 1/2 NPT Brass

3210-002 

Close Nipple, 1/2 NPT Brass

$4.79In Stock
AN917 Female NPT Pipe Tee - Aluminum

3256-Size 

AN917 Female NPT Pipe Tee - Aluminum

 
5.0
$13.79
to
$29.99*
In Stock
Female Tee Fitting, 1/8 NPT Brass

3212 

Female Tee Fitting, 1/8 NPT Brass

 
4.5
$5.79*In Stock
Steel 1/8 NPT Female Tee

3223 

Steel 1/8 NPT Female Tee

$9.99*In Stock
Female Tee Fitting, 1/4 NPT Brass

3213 

Female Tee Fitting, 1/4 NPT Brass

$5.99*In Stock
AN912 Aluminum Pipe Reducer Bushing

3257-Size-Size 

AN912 Aluminum Pipe Reducer Bushing

 
5.0
$5.79
to
$12.99*
In Stock
AN914 Female NPT to Male NPT 90 Degree Elbow

3228-301-Size 

AN914 Female NPT to Male NPT 90 Degree Elbow

 
5.0
$6.99
to
$14.99*
In Stock
AN915 Female NPT to Male NPT 45 Degree Elbow

3228-302-Size 

AN915 Female NPT to Male NPT 45 Degree Elbow

 
5.0
$8.99
to
$14.99*
In Stock
Female NPT to Male NPT Straight Extender

AF372-Size-Color 

Female NPT to Male NPT Straight Extender

 
5.0
$7.59
to
$8.49
In Stock
AN910 Female Pipe Coupler, Aluminum

3280-Size 

AN910 Female Pipe Coupler, Aluminum

 
5.0
$4.49
to
$8.99*
In Stock
AN Tee with NPT Female Branch, Steel

3209-Size-Color 

AN Tee with NPT Female Branch, Steel

 
5.0
$15.49
to
$21.29*
In Stock
Stainless Steel AN Tee with NPT Female Branch, 3AN Male

AF334-03 

Stainless Steel AN Tee with NPT Female Branch, 3AN Male

$17.79In Stock
Brake Pressure Tee, 3AN Female to 3AN Male, Female 1/8" NPT

AF140-03-SS 

Brake Pressure Tee, 3AN Female to 3AN Male, Female 1/8" NPT

 
5.0
$16.49In Stock
Brake Pressure T-Fitting, Female 1/8 NPT to -3 Hose Ends

MC-344 

Brake Pressure T-Fitting, Female 1/8 NPT to -3 Hose Ends

 
5.0
$39.49*In Stock
Stainless Steel AN Tee with NPT Female Branch, 4AN Male

AF334-04 

Stainless Steel AN Tee with NPT Female Branch, 4AN Male

$13.79In Stock
1/8 NPT Female to 4AN Male Bulkhead Connector, Steel

3208-Size-Color 

1/8 NPT Female to 4AN Male Bulkhead Connector, Steel

 
5.0
$11.79*In Stock
AN to NPT Male Pressure Gauge Adapter, 1/8 NPT Port

3228-304-Size-Size 

AN to NPT Male Pressure Gauge Adapter, 1/8 NPT Port

$9.79
to
$14.99*
In Stock
Aluminum Fuel Distribution Block

3289-Size-Size 

Aluminum Fuel Distribution Block

$33.99
to
$62.99*
In Stock
Male AN Straight Fuel Pressure Gauge Adapter, 1/8 NPT Port

1069-Size 

Male AN Straight Fuel Pressure Gauge Adapter, 1/8 NPT Port

 
5.0
$12.79
to
$19.99*
In Stock
4AN Male to 4AN Female Adapter w/ 1/8 NPT in Hex, Stainless

AF140-04-SS 

4AN Male to 4AN Female Adapter w/ 1/8 NPT in Hex, Stainless

 
5.0
$16.99In Stock
6AN Male to 6AN Female Adapter with 1/8 NPT in Hex, Aluminum

1069-06MF 

6AN Male to 6AN Female Adapter with 1/8 NPT in Hex, Aluminum

 
4.8
$10.99*In Stock
8AN Male to 8AN Female Adapter with 1/8 NPT in Hex, Aluminum

1069-08MF 

8AN Male to 8AN Female Adapter with 1/8 NPT in Hex, Aluminum

 
5.0
$14.99*In Stock
10AN Male to 10AN Female Inline Gauge Adapter, Blue Alum.

1069-10MF 

10AN Male to 10AN Female Inline Gauge Adapter, Blue Alum.

$20.49In Stock
12AN Male to 12AN Female Inline Gauge Adapter, Black Alum.

1069-12MF 

12AN Male to 12AN Female Inline Gauge Adapter, Black Alum.

 
5.0
$23.49In Stock
12AN Male to 12AN Female Inline Gauge Adapter, Aluminum

AF140-12-Color 

12AN Male to 12AN Female Inline Gauge Adapter, Aluminum

$21.99In Stock
Male AN 90 Degree Elbow Pressure Gauge Adapter, 1/8 NPT Port

3228-305-Size 

Male AN 90 Degree Elbow Pressure Gauge Adapter, 1/8 NPT Port

$16.29
to
$36.99*
Some
In Stock
1/8 NPT to 1/4 Hose Barb Fitting, Brass - Straight

3220-02-04 

1/8 NPT to 1/4 Hose Barb Fitting, Brass - Straight

 
5.0
$1.99In Stock
1/8 NPT to 1/4 Hose Barb Fitting, Brass - Right Angle

3221-02-04 

1/8 NPT to 1/4 Hose Barb Fitting, Brass - Right Angle

$10.99In Stock
1/8 NPT to 5/16 (8mm) Hose Barb Fitting, Brass - Straight

3220-02-05 

1/8 NPT to 5/16 (8mm) Hose Barb Fitting, Brass - Straight

 
5.0
$2.39*In Stock
1/8 NPT to 5/16 (8mm) Hose Barb Fitting, Brass - Right Angle

3221-02-05 

1/8 NPT to 5/16 (8mm) Hose Barb Fitting, Brass - Right Angle

 
5.0
$6.49*In Stock
1/8 NPT to 3/8 Hose Barb Fitting, Brass - Straight

3220-02-06 

1/8 NPT to 3/8 Hose Barb Fitting, Brass - Straight

$2.49*In Stock
1/4 NPT to 5/16 (8mm) Hose Barb Fitting, Brass - Straight

3220-04-05 

1/4 NPT to 5/16 (8mm) Hose Barb Fitting, Brass - Straight

 
5.0
$2.69In Stock
1/4 NPT to 3/8 Hose Barb Fitting, Brass - Straight

3220-04-06 

1/4 NPT to 3/8 Hose Barb Fitting, Brass - Straight

$2.59In Stock
1/4 NPT to 3/8 Hose Barb Fitting, Brass - Right Angle

3221-04-06 

1/4 NPT to 3/8 Hose Barb Fitting, Brass - Right Angle

$8.59*In Stock
Female Aluminum NPT Weld Bung

3228-125-Size 

Female Aluminum NPT Weld Bung

 
5.0
$4.19
to
$9.99*
In Stock
ARP Female Aluminum Weld Bung, 1/4 NPT

ARP800-8101 

ARP Female Aluminum Weld Bung, 1/4 NPT

$11.35Not In Stock
notify me when available
ARP Female Aluminum Weld Bung, 3/8 NPT

ARP800-8102 

ARP Female Aluminum Weld Bung, 3/8 NPT

$11.95Not In Stock
notify me when available
ARP Female Aluminum Weld Bung, 1/2 NPT

ARP800-8103 

ARP Female Aluminum Weld Bung, 1/2 NPT

$12.56In Stock
ARP Female Aluminum Weld Bung, 3/4 NPT

ARP800-8104 

ARP Female Aluminum Weld Bung, 3/4 NPT

$13.16Not In Stock
notify me when available
ARP Female Aluminum Weld Bung, 1" NPT

ARP800-8105 

ARP Female Aluminum Weld Bung, 1" NPT

$13.78Not In Stock
notify me when available
Female Steel NPT Weld Bung

3228-123-Size 

Female Steel NPT Weld Bung

$4.49In Stock
ARP Female Steel Weld Bung, 1/4 NPT

ARP800-8201 

ARP Female Steel Weld Bung, 1/4 NPT

$11.06In Stock
ARP Female Steel Weld Bung, 3/8 NPT

ARP800-8202 

ARP Female Steel Weld Bung, 3/8 NPT

$11.12Not In Stock
notify me when available
ARP Female Steel Weld Bung, 1/2 NPT

ARP800-8203 

ARP Female Steel Weld Bung, 1/2 NPT

$11.45In Stock
ARP Female Steel Weld Bung, 3/4 NPT

ARP800-8204 

ARP Female Steel Weld Bung, 3/4 NPT

$11.80Not In Stock
notify me when available
ARP Female Steel Weld Bung, 1" NPT

ARP800-8205 

ARP Female Steel Weld Bung, 1" NPT

$12.13Not In Stock
notify me when available
AN932 Allen Head Pipe Plug

3258-Size 

AN932 Allen Head Pipe Plug

 
4.9
$2.99
to
$4.79*
In Stock
Magnetic Plug, Steel, Hex Socket, 1/8 NPT

1010 

Magnetic Plug, Steel, Hex Socket, 1/8 NPT

 
5.0
$2.99*Not In Stock
notify me when available
Magnetic Plug, Steel, Hex Socket, 1/4 NPT

1011 

Magnetic Plug, Steel, Hex Socket, 1/4 NPT

 
5.0
$3.19*In Stock
Magnetic Plug, Steel, Hex Socket, 3/8 NPT

1012 

Magnetic Plug, Steel, Hex Socket, 3/8 NPT

 
5.0
$2.89*In Stock
Magnetic Plug, Steel, Hex Socket, 1/2 NPT

1013 

Magnetic Plug, Steel, Hex Socket, 1/2 NPT

 
5.0
$3.19*In Stock
Magnetic Plug, Steel, Hex Socket, 3/4 NPT

1014 

Magnetic Plug, Steel, Hex Socket, 3/4 NPT

 
4.0
$4.79*In Stock
Magnetic Plug, Steel, Hex Socket, 1 -11.5 NPT

1015 

Magnetic Plug, Steel, Hex Socket, 1 -11.5 NPT

$5.29*In Stock
1/8 NPT Female to M10x1.0 Male Pressure Gauge Adapter, Brass

AM2265 

1/8 NPT Female to M10x1.0 Male Pressure Gauge Adapter, Brass

 
4.7
$17.41In Stock
1/8 NPT Female to M12x1.5 Male Pressure Gauge Adapter, Brass

AM2277 

1/8 NPT Female to M12x1.5 Male Pressure Gauge Adapter, Brass

$17.54In Stock
1/8 NPT Female to M12x1.75 Male Pressure Gauge Adapter,Brass

AM2278 

1/8 NPT Female to M12x1.75 Male Pressure Gauge Adapter,Brass

$16.64In Stock
1/8 NPT Female to M14x1.5 Male Pressure Gauge Adapter, Brass

AM2267 

1/8 NPT Female to M14x1.5 Male Pressure Gauge Adapter, Brass

$16.64In Stock
1/8 NPT Female to M16x1.5 Male Pressure Gauge Adapter, Brass

AM2268 

1/8 NPT Female to M16x1.5 Male Pressure Gauge Adapter, Brass

 
5.0
$16.83In Stock
Pressure Gauge Adapter, 1/8 BSP Male & Female, 1/8 NPT F Tee

1073-001 

Pressure Gauge Adapter, 1/8 BSP Male & Female, 1/8 NPT F Tee

 
5.0
$28.99In Stock
1/8 NPT Female to 1/8 BSP Male Pressure Gauge Adapter, Brass

AM2269 

1/8 NPT Female to 1/8 BSP Male Pressure Gauge Adapter, Brass

 
5.0
$16.64*In Stock
Brake Fitting Adapter Kit, 3/16" Tube (3/8-24 IF) to 1/8 NPT

AF375-02 

Brake Fitting Adapter Kit, 3/16" Tube (3/8-24 IF) to 1/8 NPT

 
5.0
$5.19In Stock
Aeromotive -6 (9/16-18) ORB Male to 6AN Male w 1/8 NPT Port

AEI-15694 

Aeromotive -6 (9/16-18) ORB Male to 6AN Male w 1/8 NPT Port

$30.95In Stock
Aeromotive -8 (3/4-16) ORB Male to 8AN Male w 1/8-NPT Port

AEI-15695 

Aeromotive -8 (3/4-16) ORB Male to 8AN Male w 1/8-NPT Port

$35.95In Stock
Aeromotive -10 (7/8-14) ORB Male to 10AN Male 1/8 NPT Port

AEI-15696 

Aeromotive -10 (7/8-14) ORB Male to 10AN Male 1/8 NPT Port

$41.95In Stock
-10 (7/8-14) ORB Male to 3/8" NPT Male Swivel Adapter

3600-002-Color 

-10 (7/8-14) ORB Male to 3/8" NPT Male Swivel Adapter

$11.49
to
$14.99
In Stock
Check Valve, 1/2 NPT Female Ports

3605-Size 

Check Valve, 1/2 NPT Female Ports

$36.00In Stock
Manual Fuel Shut-Off Valve, Female NPT In / Male AN Out

3496-001-Size-Size 

Manual Fuel Shut-Off Valve, Female NPT In / Male AN Out

 
5.0
$59.99
to
$74.99
In Stock
Loctite PST 565 High Performance Thread Sealant, 50 ml

LT-37396 

Loctite PST 565 High Performance Thread Sealant, 50 ml

 
5.0
$14.99In Stock
Loctite PST Thread Sealant Stick

LT-37615 

Loctite PST Thread Sealant Stick

 
5.0
$12.99In Stock

  * Quantity Pricing Available