2 NPTF Pipe Fittings | McMaster-Carr

Clear All

	Pipe Size Pipe Size	Show

	Pipe Size Pipe Size	Hide

	Thread Type Thread Type	Show

NPTF

	Thread Type Thread Type	Hide

	Type Type


Adapter	Bushing

Cap	Connector

Flange	Plug

Reducing Adapter

	Material Material

Stainless Steel

Steel

	Shape Shape

	Straight
	90° Elbow
	Cap/Plug

	Connection Style Connection Style

	Gender Gender

Female

Male

	For Use With For Use With

	Drive Style Drive Style


External Hex	Hex

	Maximum Pressure Maximum Pressure

	Connection Type Connection Type


Pipe	Tube

Hose

	Specifications Met Specifications Met

ASTM

ISO

SAE

	For Pipe Material For Pipe Material

304/304L Stainless Steel

304 Stainless Steel

316/316L Stainless Steel

316 Stainless Steel

	Flanged Connection Surface Flanged Connection Surface


Flat	O-Ring Groove

	System of Measurement System of Measurement

Inch

	Length Length

	Dash Size Dash Size

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

DFARS Specialty Metals
COTS-Exempt

	Finish Finish

Galvanized

Zinc Plated

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

RoHS Compliant

RoHS Compliant with
Exemptions

	Body Shape Body Shape

	Hex

	Fabrication Fabrication

Machined

Forged

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

REACH Compliant

Forward

How can we improve?

30 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
2	1"	270 psi @ 72° F	180 psi @ 360° F	00000000	000000	00000000	000000
NPTF Male Hollow with Magnet
2	1"	270 psi @ 72° F	180 psi @ 360° F	000000	00	0000000	00000

High-Pressure Stainless Steel Threaded SAE Pipe Flanges

Also known as Code 61 SAE hydraulic flanges, these let you create an access point in a high-pressure hydraulic line. To connect, bolt flanges to equipment, or bolt a flange with an O-ring groove surface to a flange with a flat surface of the same size. Flanges are 316 stainless steel for excellent corrosion resistance.

NPTF (Dryseal) threads are compatible with NPT threads.

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

Flanges with Flat Surface on Back

Front

Back

For Use With: Hydraulic Fluid
Specifications Met: SAE J518, ISO 6162

				Flange					Bolt Hole			316/316L Stainless Steel
Pipe Size	SAE Flange Size	Dash Size	Max. Pressure	Ht.	Wd.	Dp.	Mounting Hardware Included	For Bolt Dia.	Dia.	No. of	Ctr.-to-Ctr.		Each
NPTF
2	2	32	1,000 psi @ 72° F	4"	3 1/4"	1 45/64"	No	1/2"	0.422"	4	1.688", 3.062"	0000000	0000000

Flanges with O-Ring Groove Surface on Back

Front

Back

For Use With: Hydraulic Fluid
Specifications Met: SAE J518, ISO 6162

				Flange					Bolt Hole			316/316L Stainless Steel
Pipe Size	SAE Flange Size	Dash Size	Max. Pressure	Ht.	Wd.	Dp.	Mounting Hardware Included	For Bolt Dia.	Dia.	No. of	Ctr.-to-Ctr.		Each
NPTF—Inch
2	2	32	1,000 psi @ 72° F	4"	3 1/4"	1 45/64"	Yes	1/2"	0.531"	4	1.688", 3.062"	0000000	0000000
NPTF—Metric
2	2	32	1,000 psi @ 72° F	102mm	83mm	43mm	Yes	12mm	13mm	4	43mm, 78mm	0000000	000000

High-Pressure Stainless Steel Threaded SAE Two-Piece Pipe Flanges

Combine an adapter with a two-piece pipe flange (sold separately) to build a customized flange connection. Also known as Code 61 or Code 62 split flanges, the two halves of the flange clamp around the adapter and bolt to another Code 61 or Code 62 flange. Flanges and adapters are 316 stainless steel which has excellent corrosion resistance.

NPTF (Dryseal) threads are compatible with NPT threads.

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

Female Adapters

For Use With: Hydraulic Fluid
Specifications Met: SAE J518, ISO 6162

					316/316L Stainless Steel
Pipe Size	For SAE Flange Size	Dash Size	Max. Pressure	For Flanged Connection Surface		Each
NPTF
2	2	32	3,000 psi @ 72° F	O-Ring Groove	0000000	0000000

Two-Piece Flanges

For Use With: Hydraulic Fluid
Specifications Met: SAE J518, ISO 6162

			Flange						For Bolt			316/316L Stainless Steel
SAE Flange Size	Dash Size	Max. Pressure	Ht.	Wd.	Dp.	Flanged Connection Surface	Mounting Hardware Included	For Bolt Dia.	Dia.	No. of	Ctr.-to-Ctr.		Each
Inch
2	32	3,000 psi @ 72° F	4"	3 13/16"	1 1/32"	O-Ring Groove	Yes	1/2"	0.531"	4	1.688", 3.062"	0000000	0000000
Metric
2	32	3,000 psi @ 72° F	102mm	97mm	26mm	O-Ring Groove	Yes	12mm	13mm	4	43mm, 78mm	0000000	000000

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.

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

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
2	32	2,400 psi @ 72° F	000000000	0000000

High-Pressure Steel Threaded SAE Pipe Flanges

NPTF (Dryseal) threads are compatible with NPT threads.

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

Flanges with Flat Surface on Back

Front

Back

For Use With: Hydraulic Fluid
Specifications Met: SAE J518, ISO 6162

				Flange					Bolt Hole
Pipe Size	Dash Size	SAE Flange Size	Max. Pressure	Ht.	Wd.	Dp.	Mounting Hardware Included	For Bolt Dia.	Dia.	No. of	Ctr.-to-Ctr.		Each
NPTF
2	32	2	3,000 psi @ 72° F	4"	3 1/4"	1 3/4"	No	1/2"	1/2"	4	1.688", 3.063"	0000000	000000

Flanges with O-Ring Groove Surface on Back

Front

Back

For Use With: Hydraulic Fluid
Specifications Met: SAE J518, ISO 6162

				Flange					Bolt Hole
Pipe Size	Dash Size	SAE Flange Size	Max. Pressure	Ht.	Wd.	Dp.	Mounting Hardware Included	For Bolt Dia.	Dia.	No. of	Ctr.-to-Ctr.		Each
NPTF—Inch
2	32	2	3,000 psi @ 72° F	4"	3 1/4"	1 3/4"	Yes	1/2"	0.53"	4	1.688", 3.063"	0000000	000000
NPTF—Metric
2	32	2	3,000 psi @ 72° F	102mm	83mm	44mm	Yes	12mm	13.3mm	4	43mm, 78mm	0000000	00000

High-Pressure Steel Threaded SAE Two-Piece Pipe Flanges

NPTF (Dryseal) threads are compatible with NPT threads.

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

Adapters

For Use With: Hydraulic Fluid
Specifications Met: SAE J518, ISO 6162

NPTF
Pipe Size	Dash Size	For SAE Flange Size	Lg.	Max. Pressure		Each
2	32	2	3 5/8"	3,000 psi @ 72° F	0000000	0000000
2	32	2	4 5/8"	6,000 psi @ 72° F	0000000	000000

Two-Piece Flanges

For Use With: Hydraulic Fluid
Specifications Met: SAE J518, ISO 6162

			Flange						Bolt Hole
SAE Flange Size	Dash Size	Max. Pressure	Ht.	Wd.	Dp.	Flanged Connection Surface	Mounting Hardware Included	For Bolt Dia.	Dia.	No. of	Ctr.-to-Ctr.		Each
Inch
2	32	3,000 psi @ 72° F	4"	3 13/16"	1 1/32"	O-Ring Groove	Yes	1/2"	0.53"	4	1 11/16" , 3 1/16"	0000000	000000
2	32	6,000 psi @ 72° F	5 1/4"	4 1/2"	2 1/16"	O-Ring Groove	Yes	3/4"	0.78"	4	1 3/4" , 3 13/16"	0000000	000000
Metric
2	32	3,000 psi @ 72° F	102mm	97mm	26mm	O-Ring Groove	Yes	12mm	13mm	4	43mm , 78mm	0000000	00000
2	32	6,000 psi @ 72° F	5 1/4"	4 1/2"	2 1/16"	O-Ring Groove	Yes	20mm	21mm	4	1 3/4" , 3 13/16"	0000000	000000

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.

NPTF (Dryseal) threads are compatible with NPT threads.

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

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
2	32	2,000 psi @ 72° F	Air, Hydraulic Fluid, Water	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
2	1	32	16	2,000 psi @ 72° F	000000000	000000
2	1 1/2	32	24	2,000 psi @ 72° F	000000000	00000

90° Elbow Connectors, Female

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

NPTF Female
Pipe Size	Dash Size	Max. Pressure		Each
2	32	2,000 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
2	32	3/4"	2,000 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
2	32	Solid	2,000 psi @ 72° F	Air, Hydraulic Fluid, Water	ASTM A108	000000000	000000

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
2"	2	Air, Fuel Oil, Hydraulic Fluid, Mineral Oil	Zinc-Plated Steel	1,100 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
2"	2	Zinc-Plated Steel	1,100 psi @ 72° F	00000000	000000

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
2"	Zinc-Plated Steel	1,100 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.

Plugs are also known as nipples.

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.

Plugs, NPTF Male Threaded Pipe

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

	Plug Tip
Coupling Size	Lg.	Dia.	Pipe Size	Max. Pressure		Each
303 Stainless Steel
2	1/4"	2 3/16"	2	1,500 psi @ 72° F	00000000	0000000

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
2	1/4"	2 3/16"	2	1,500 psi @ 72° F	00000000	000000000