1 1/4 NPTF Pipe Fittings

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1 1/4

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	Thread Type Thread Type	Show

NPTF

	Thread Type Thread Type	Hide

UN/UNF (SAE Straight)

UNJ/UNJF (JIC)

	Type Type


Adapter	Bushing

Cap	Connector

Plug	Reducer

Reducing Adapter

	Material Material

	Shape Shape


Straight	90° Elbow

Tee	Cap/Plug

45° Elbow	Cross

	Maximum Pressure Maximum Pressure

	For Use With For Use With

	Connection Style Connection Style

Threaded

Flared

Quick Disconnect

	Gender Gender

Female

Male

	Drive Style Drive Style


External Hex	Hex

	Dash Size Dash Size

	Connection Type Connection Type


Pipe	Tube

Hose

	System of Measurement System of Measurement

Inch

	Thread Size Thread Size

1 5/8"-12

1 7/8"-12

	Finish Finish

Black Coated

Galvanized

Zinc Plated

	Length Length

	For Pipe Material For Pipe Material

Stainless Steel

Steel

Aluminum

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Maximum Steam Pressure Maximum Steam Pressure

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

	Specifications Met Specifications Met

	Body Shape Body Shape

	Hex

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

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38 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 Stainless Steel Threaded Pipe Fittings

Use these fittings in a low-pressure pipe line. 304 stainless steel fittings have very good corrosion resistance. 316 stainless steel fittings have excellent corrosion resistance.

Plugs with magnet attract metal debris that could otherwise damage your system.

NPTF (Dryseal) threads and NPSL (National Pipe Straight Locknut) threads are compatible with NPT threads.

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

Plugs with Hex Drive

For Use With: Air, Steam, Oil, Water, Natural Gas
Pressure Class:
NPTF: 150
Specifications Met:
Metric and BSPP: DIN 908
Pipe Nipples and Pipe:
NPTF: Use Schedule 40 stainless steel
Flanges:
NPTF: Use Class 150 stainless steel

				304 Stainless Steel		316 Stainless Steel
Pipe Size	Drive Size	Max. Pressure	Max. Steam Pressure		Each		Each
NPTF Male
1 1/4	3/4"	270 psi @ 72° F	180 psi @ 360° F	00000000	000000	00000000	000000
NPTF Male Hollow with Magnet
1 1/4	3/4"	270 psi @ 72° F	180 psi @ 360° F	000000	00	0000000	00000

Extreme-Pressure Stainless Steel Threaded Pipe Fittings

With the strength to handle extreme pressures, these fittings can be used to connect equipment in hydraulic fluid lines. 316 stainless steel fittings have excellent corrosion resistance.

NPTF (Dryseal) threads are compatible with NPT threads. UN/UNF (SAE Straight) threads are also known as O-ring boss threads; the male threads have a gasket to prevent leaks.

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

Straight Connectors, Female

For Use With: See table
Specifications Met: See table

						316 Stainless Steel
Pipe Size	Dash Size	Max. Pressure	Max. Steam Pressure	For Use With	Specifications Met		Each
NPTF Female
1 1/4	20	3,000 psi @ 72° F	3,000 psi @ 300° F	Hydraulic Fluid, Oil, Steam, Water	ASTM A479	000000000	0000000

Straight Connectors, Male

Specifications Met: See table
For Use With: See table

							316 Stainless Steel
Pipe Size	Dash Size	Lg.	Max. Pressure	Max. Steam Pressure	For Use With	Specifications Met		Each
NPTF Male
1 1/4	20	2 31/64"	3,600 psi @ 72° F	3,600 psi @ 300° F	Hydraulic Fluid, Oil, Steam, Water	ASTM A479	000000000	0000000

Straight Adapters, Male

Front

UN/UNF
(SAE Straight) Male
Threads with Gasket

For Use With: See table
Specifications Met: See table

								316 Stainless Steel
Pipe Size (A)	Dash Size (A)	Thread Size (B)	Dash Size (B)	Max. Pressure	Max. Steam Pressure	For Use With	Specifications Met		Each
NPTF Male × UN/UNF (SAE Straight) Male
1 1/4	20	1 5/8"-12	20	3,000 psi @ 72° F	3,000 psi @ 200° F	Hydraulic Fluid, Oil, Steam, Water	SAE J514	000000000	0000000
1 1/4	20	1 7/8"-12	24	2,400 psi @ 72° F	2,400 psi @ 200° F	Hydraulic Fluid, Oil, Steam, Water	SAE J514	000000000	000000

Straight Reducing Adapters, Female × Male

Specifications Met: See table
For Use With: See table

Pipe Size		Dash Size						316 Stainless Steel
(A)	(B)	(A)	(B)	Max. Pressure	Max. Steam Pressure	For Use With	Specifications Met		Each
NPTF Female × NPTF Male
1 1/4	1	20	16	3,000 psi @ 72° F	3,000 psi @ 300° F	Hydraulic Fluid, Oil, Steam, Water	ASTM A479	000000000	0000000

Bushing Straight Reducing Adapters

For Use With: Hydraulic Fluid, Oil, Steam, Water
Specifications Met:
NPT × NPT: SAE J514
NPTF × NPTF: ASTM A479

Pipe Size		Dash Size				316 Stainless Steel
(A)	(B)	(A)	(B)	Max. Pressure	Max. Steam Pressure		Each
NPTF Male × NPTF Female
1 1/4	1	20	16	3,600 psi @ 72° F	3,600 psi @ 300° F	000000000	0000000

Straight Reducers, Female

For Use With: See table
Specifications Met: See table

Pipe Size		Dash Size						316 Stainless Steel
(A)	(B)	(A)	(B)	Max. Pressure	Max. Steam Pressure	For Use With	Specifications Met		Each
NPTF Female
1 1/4	1	20	16	3,000 psi @ 72° F	3,000 psi @ 300° F	Hydraulic Fluid, Oil, Steam, Water	ASTM A479	000000000	0000000

Straight Reducers, Male

For Use With: See table
Specifications Met: See table

Pipe Size		Dash Size						316 Stainless Steel
(A)	(B)	(A)	(B)	Max. Pressure	Max. Steam Pressure	For Use With	Specifications Met		Each
NPTF Male
1 1/4	1	20	16	3,600 psi @ 72° F	3,600 psi @ 300° F	Hydraulic Fluid, Oil, Steam, Water	ASTM A479	000000000	0000000

Caps

For Use With: Hydraulic Fluid, Oil, Water
Specifications Met:
BSPP: ISO 1179, ISO 8434-6

			316 Stainless Steel
Pipe Size	Dash Size	Max. Pressure		Each
NPTF Female
1 1/4	20	2,400 psi @ 72° F	000000000	0000000

Medium-Pressure Iron and Steel Threaded Pipe Fittings

With better strength than our low-pressure iron and steel pipe fittings, these can handle medium-pressure applications. They are for use in noncorrosive environments.

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

Plugs with Hex Drive

For Use With: Air, Steam, Oil, Water, Natural Gas
Pressure Class : 300
Specifications Met: See Table
Pipe Nipples and Pipe: Use Schedule 80 steel
Flanges: Use Class 300 or 600 steel

NPTF Male
Pipe Size	Drive Size	Max. Pressure	Max. Steam Pressure	Material	Specifications Met		Each
1 1/4	3/4"	300 psi @ 72° F	300 psi @ 550° F	Steel	ASME B16.14	00000000	00000

Compact Extreme-Pressure Steel Threaded Pipe Fittings

These fittings are strong enough to handle extreme pressures, yet small enough to fit into cramped spaces. They are galvanized steel, which has fair corrosion resistance.

Female x male 90° elbow adapters are also known as street elbows. Right-angle tees are also known as run tees.

NPTF (Dryseal) threads are compatible with NPT threads.

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

Straight Connectors, Female

For Use With:
NPTF: Air, Hydraulic Fluid, Water
Metric: Air, Hydraulic Fluid, Oil, Water
Specifications Met:
NPTF: ASTM A108
Metric: DIN 7631, ISO 6149, ISO 9974

NPTF Female
Pipe Size	Dash Size	Max. Pressure		Each
1 1/4	20	2,500 psi @ 72° F	000000000	000000

Straight Connectors, Male

For Use With: See table
Specifications Met:
NPTF and UN/UNF (SAE Straight): ASTM A108
BSPP: ISO 1179, ISO 8434-6
BSPT: DIN EN 10226-1, ISO 7-1

NPTF Male
Pipe Size	Dash Size	Max. Pressure	For Use With		Each
1 1/4	20	3,000 psi @ 72° F	Air, Hydraulic Fluid, Water	000000000	000000

Straight Reducing Adapters, Female × Male

For Use With: See table
Specifications Met: See table

Pipe Size		Dash Size
(A)	(B)	(A)	(B)	Max. Pressure	For Use With	Specifications Met		Each
NPTF Female × NPTF Male
1 1/4	1	20	16	2,500 psi @ 72° F	Air, Hydraulic Fluid, Water	ASTM A108	000000000	000000

Bushing Straight Reducing Adapters

For Use With: Air, Hydraulic Fluid, Water
Specifications Met: ASTM A108

Pipe Size		Dash Size
(A)	(B)	(A)	(B)	Max. Pressure		Each
NPTF Male × NPTF Female
1 1/4	1	20	16	3,000 psi @ 72° F	000000000	000000

Straight Reducers, Male

For Use With:
NPTF: Air, Hydraulic Fluid, Water
BSPP and BSPT: Air, Hydraulic Fluid, Oil, Water
Specifications Met:
NPTF: ASTM A108
BSPP: ISO 1179, ISO 8434-6
BSPT: DIN EN 10226-1, ISO 7-1

Pipe Size		Dash Size
(A)	(B)	(A)	(B)	Max. Pressure		Each
NPTF Male
1 1/4	1	20	16	3,000 psi @ 72° F	000000000	000000

90° Elbow Connectors, Female

For Use With: Air, Hydraulic Fluid, Water
Specifications Met: ASTM A576

NPTF Female
Pipe Size	Dash Size	Max. Pressure		Each
1 1/4	20	1,500 psi @ 72° F	000000000	000000

90° Elbow Connectors, Male

For Use With: Air, Hydraulic Fluid, Water
Specifications Met: ASTM A576

NPTF Male
Pipe Size	Dash Size	Max. Pressure		Each
1 1/4	20	2,500 psi @ 72° F	000000000	000000

90° Elbow Adapters

For Use With: Air, Hydraulic Fluid, Water
Specifications Met: ASTM A576

NPT Female × NPTF Male
Pipe Size (A)	Dash Size (A)	Pipe Size (B)	Dash Size (B)	Max. Pressure		Each
1 1/4	20	1 1/4	20	1,500 psi @ 72° F	000000000	000000

45° Elbow Connectors

For Use With: Air, Hydraulic Fluid, Water
Specifications Met: ASTM A576

NPTF Female
Pipe Size	Dash Size	Max. Pressure		Each
1 1/4	20	1,800 psi @ 72° F	000000000	000000

Tee Connectors, Female

For Use With: Air, Hydraulic Fluid, Water
Specifications Met: ASTM A576

NPTF Female
Pipe Size	Dash Size	Max. Pressure		Each
1 1/4	20	1,500 psi @ 72° F	000000000	000000

Tee Connectors, Male

For Use With: Air, Hydraulic Fluid, Water
Specifications Met: ASTM A576

NPTF Male
Pipe Size	Dash Size	Max. Pressure		Each
1 1/4	20	2,500 psi @ 72° F	000000000	000000

Right-Angle Tee Adapters

For Use With: Air, Hydraulic Fluid, Water
Specifications Met: ASTM A576

NPTF Female × NPTF Male
Pipe Size	Dash Size	Max. Pressure		Each
1 1/4	20	1,500 psi @ 72° F	000000000	0000000

Cross Connectors

For Use With: Air, Hydraulic Fluid, Water
Specifications Met: ASTM A576

NPTF Female
Pipe Size	Dash Size	Max. Pressure		Each
1 1/4	20	1,500 psi @ 72° F	000000000	0000000

Plugs with Hex Drive

For Use With:
NPTF and UN/UNF (SAE Straight): Air, Hydraulic Fluid, Water
Metric, BSPP and BSPT: Air, Hydraulic Fluid, Oil, Water
Specifications Met: See table

NPTF Male
Pipe Size	Dash Size	Drive Size	Max. Pressure	Specifications Met		Each
1 1/4	20	3/4"	3,000 psi @ 72° F	ASTM A108	000000000	000000

Plugs with External Hex Drive

For Use With: See table
Specifications Met: See table

NPTF Male
Pipe Size	Dash Size	Plug Construction	Max. Pressure	For Use With	Specifications Met		Each
1 1/4	20	Solid	3,000 psi @ 72° F	Air, Hydraulic Fluid, Water	ASTM A108	000000000	000000

Extreme-Pressure Steel Threaded Pipe Fittings

The strongest steel fittings we offer, these can withstand extreme-pressure applications.

Plugs with a 7/8" taper sit flush to the surface for a low profile.

NPTF (Dryseal) threads are compatible with NPT threads.

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

Plugs with Hex Drive and 7/8" Taper

For Use With: Air, Hydraulic Fluid, Natural Gas, Oil, Steam, Water
Temperature Range: -100° to 450° F
Specifications Met: ASTM A574, ASME B1.20.3
Pipe Nipples and Pipe: Use Schedule XXH steel
Flanges: Use Class 1500 steel

			Steel
Pipe Size	Dash Size	Max. Pressure		Each
NPTF Male
1 1/4	20	5,000 psi @ 72° F	0000000	000000

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.

Adapters for tanks weld onto the surface of any tank, pressure vessel, or drum to create a permanent inlet or outlet connection. NPTF (Dryseal) threads and NPSL (National Pipe Straight Locknut) threads are compatible with NPT threads.

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

Straight Adapters for Curved Tanks

For Use With: Water, Oil, Gasoline, Diesel Fuel
Pipe Nipples and Pipe: Use Schedule 40 aluminum

NPTF Female × Weld
Pipe Size	For Hole Dia.	OD	Lg.	For Tank OD		Each
1 1/4	1 3/4"	2 13/16"	1/4"	36"	0000000	00000

37° Flared Fittings for Steel Tubing

Tubing: Use with seamless steel
Specifications Met: SAE J514

Also known as JIC (Joint Industrial Council) fittings, these provide a tight metal-to-metal seal on tubing that is flared to 37°. They require a nut and a sleeve (ferrule) for each tube end. Nuts and sleeves are sold separately. Fittings are zinc-plated steel for fair corrosion resistance.

NPTF (Dryseal) threads are compatible with NPT threads.

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

Straight Adapters, Male Tube × Male Threaded Pipe

For Use With: See Table
Temperature Range: See Table

NPTF Threads
For Tube OD	Pipe Size	For Use With	Material	Max. Pressure	Temp. Range, °F		Each
1 1/4"	1 1/4	Air, Fuel Oil, Hydraulic Fluid, Mineral Oil	Zinc-Plated Steel	2,000 psi @ 72° F	-60° to 400°	00000000	000000

Straight Adapters, Male Tube × Female Threaded Pipe

For Use With: Air, Fuel Oil, Hydraulic Fluid, Mineral Oil
Temperature Range: -60° to 400° F

NPTF Threads
For Tube OD	Pipe Size	Material	Max. Pressure		Each
1 1/4"	1 1/4	Zinc-Plated Steel	2,000 psi @ 72° F	00000000	000000

Sleeves

For Use With: Air, Fuel Oil, Hydraulic Fluid, Mineral Oil
Temperature Range: -60° to 400° F

Use these sleeves with a nut and fitting to provide a tight metal-to-metal seal on steel tubing that is flared to 37°. Sleeves are zinc-plated steel for fair corrosion resistance. They are also known as ferrules.

For Tube OD
Inch	Sleeve Material	Max. Pressure		Each
Inch Sleeves
1 1/4"	Zinc-Plated Steel	2,000 psi @ 72° F	00000000	00000

Nuts

For Use With: Air, Fuel Oil, Hydraulic Fluid, Mineral Oil
Temperature Range: -60° to 400° F

For Tube OD	Nut Material	Max. Pressure		Each
1 1/4"	Zinc-Plated Steel	2,000 psi @ 72° F	00000000	000000

Open-Flow Quick-Disconnect Hose Couplings for Air and Water

Couplings allow for maximum flow because there’s no shut-off valve in the plug or the socket. A complete coupling consists of a plug and a socket (both sold separately) that connect and disconnect quickly. Use them if you need frequent access to a line. All Open-Flow plugs are compatible with any of the Open-Flow sockets of the same coupling size, regardless of the pipe size. They are compatible with Hansen ST, Parker ST, and Perfecting E couplings.

Sockets are sleeve-lock style. To connect, slide back the sleeve on the socket, insert the plug, and release the sleeve. To disconnect, slide back the sleeve and pull out the plug.

303 stainless steel plugs and sockets have very good corrosion resistance. They’re the best choice for high-humidity environments.

Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size.

Warning: There is no valve in these couplings. Stop the air and water flow before you disconnect the line.

Sleeve-Lock Sockets, NPTF Female Threaded Pipe

Maximum Pressure: See table
Temperature Range: -40° to 250° F
Compatible With: Hansen ST Couplings, Parker ST Couplings, Perfecting E Couplings

	For Plug Tip
Coupling Size	Lg.	Dia.	Pipe Size	Max. Pressure		Each
303 Stainless Steel
1 1/4	1/8"	1 7/16"	1 1/4	2,200 psi @ 72° F	00000000	0000000

Natural and LP Gas Hose Fittings

1 1/4 Coupling Size

Use these couplings when you need frequent access to a gas line. A complete coupling consists of a plug and a socket (sold separately or in a set) that connect and disconnect quickly. All of the natural and LP gas plugs are compatible with any of the natural and LP gas sockets of the same coupling size, regardless of the pipe size. Plugs and sockets are brass for good corrosion resistance. These couplings are rated ANSI Z21.41/CSA 6.9 for use with gas fuel appliances. CSA-US and CSA Certified, they also meet U.S. and Canadian safety standards.

Plugs are also known as nipples. They have a heat-sensitive fuse that will stop gas flow in the event of a fire.

Sockets have a shut-off valve that stops the flow when the coupling is separated, so gas won’t leak from the line. They are sleeve-lock style. To connect, slide back the sleeve on the socket, insert the plug, and release the sleeve. To disconnect, slide back the sleeve and pull out the plug.

NPTF (Dryseal) threads are compatible with NPT threads.

Warning: Stop the flow before you disconnect the line.

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

Quick-Disconnect Plugs, Female Threaded Pipe