1 1/16"-12 Nipples | McMaster-Carr

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	Thread Type Thread Type

UN/UNF (SAE Straight)

UNJ/UNJF (JIC)

	Pipe Size Pipe Size

1/2

3/4

	System of Measurement System of Measurement

Inch

Metric

	Thread Size Thread Size	Show

1 1/16"-12

	Thread Size Thread Size	Hide

	Type Type


Adapter	Connector

	Material Material

	Shape Shape

	Straight

	Connection Style Connection Style

Threaded

Barbed

Flared

	Dash Size Dash Size

	Gender Gender

Male

Female

	For Use With For Use With

	For Tube OD For Tube OD

3/4"

	Maximum Pressure Maximum Pressure

	Connection Type Connection Type


Pipe	Hose

Tube

	For Tube Material For Tube Material

	Flared Connection Type Flared Connection Type


Standard	Internal

	Length Length

	Flared Angle Flared Angle

37°

	Specifications Met Specifications Met

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

DFARS Specialty Metals
COTS-Exempt

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

RoHS Compliant

RoHS Compliant with
Exemptions

	For Tube Fabrication For Tube Fabrication

Seamless

Welded

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

REACH Compliant

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51 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.

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. BSPP and metric male threads have either a gasket or a gasket and washer to prevent leaks. 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 Adapters, Male

Front

BSPP and Metric
Male Threads with
Gasket and Washer

UN/UNF
(SAE Straight) Male
Threads with Gasket

For Use With: See table
Specifications Met: See table

									316 Stainless Steel
Pipe Size (A)	Thread Size (A)	Dash Size (A)	Pipe Size (B)	Thread Size (B)	Dash Size (B)	Max. Pressure	For Use With	Specifications Met		Each
NPTF Male × UN/UNF (SAE Straight) Male
3/4	__	12	__	1 1/16"-12	12	6,000 psi @ 72° F	Hydraulic Fluid (Petroleum Base), Oil, Water	SAE J514	000000000	0000000
UN/UNF (SAE Straight) Male × BSPP Male
__	1 1/16"-12	12	1/2	__	08	3,500 psi @ 72° F	Hydraulic Fluid, Oil, Water	ISO 1179, ISO 8434-6, SAE J1926	00000000	00000
__	1 1/16"-12	12	3/4	__	12	3,500 psi @ 72° F	Hydraulic Fluid, Oil, Water	ISO 1179, ISO 8434-6, SAE J1926	00000000	00000
__	1 1/16"-12	12	1	__	16	2,900 psi @ 72° F	Hydraulic Fluid, Oil, Water	ISO 1179, ISO 8434-6, SAE J1926	00000000	000000

Replacement Washers

Temperature Range: -22° to 230° F

		316 Stainless Steel
For Pipe Size	Gasket Material	Thickness		Each
For BSPP Male
1/2	Buna-N Rubber	2.5mm	00000000	00000
3/4	Buna-N Rubber	2.5mm	00000000	0000
1	Buna-N Rubber	3.2mm	00000000	00000

Precision Extreme-Pressure Stainless Steel Threaded Pipe Fittings

Made to tighter tolerances than other stainless steel pipe fittings, these are also known as instrumentation fittings. The male threads are rolled for extra strength in extreme-pressure applications. Fittings are commonly used to connect equipment in gas and hydraulic fluid lines. They are 316 stainless steel for excellent corrosion resistance. 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 Adapters, Male

Straight Adapter, Male Threaded Pipe

UN/UNF
(SAE Straight) Male
Threads with Gasket

For Use With:
NPT × BSPP: Natural Gas, Water
NPT × BSPT and UN/UNF (SAE Straight) Male × NPT Male: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
Specifications Met:
NPT × BSPP: ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM A276, ASTM A479, ISO 228.1, ISO 228.2, ISO BS 2779
NPT × BSPT: ASME B1.20.1, ASME B31.1, ASME B31.3, ISO 7.1, ISO BS2.1
UN/UNF (SAE Straight) Male × NPT Male: ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM A182, ASTM A276, ASTM A479, SAE J1926

UN/UNF (SAE Straight) Male × NPT Male
Thread Size	Dash Size	Max. Pressure	Max. Steam Pressure		Each
1 1/16"-12	12	3,600 psi @ 72° F	3,600 psi @ 300° F	000000000	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. BSPP and metric male threads have either a gasket, or a gasket and washer, to prevent leaks. UN/UNF (SAE Straight) threads are also known as O-ring boss threads; the male threads have either a gasket or a gasket and washer to prevent leaks.

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

Straight Connectors, Male

UN/UNF
(SAE Straight) Male
Threads with Gasket

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

UN/UNF (SAE Straight) Male
Thread Size	Dash Size	Max. Pressure	For Use With		Each
1 1/16"-12	12	5,000 psi @ 72° F	Air, Hydraulic Fluid, Water	000000000	000000

Straight Adapters, Male

BSPP, Metric, and UN/UNF
(SAE Straight) Male
Threads with Gasket and Washer

UN/UNF
(SAE Straight) Male
Threads with Gasket

For Use With: See table
Specifications Met: See table

NPTF Male × UN/UNF (SAE Straight) Male
Pipe Size (A)	Thread Size (A)	Dash Size (A)	Pipe Size (B)	Thread Size (B)	Dash Size (B)	Max. Pressure	For Use With	Specifications Met		Each
1/2	__	08	__	1 1/16"-12	12	5,000 psi @ 72° F	Air, Hydraulic Fluid, Water	ASTM A108	000000000	000000
3/4	__	12	__	1 1/16"-12	12	5,000 psi @ 72° F	Air, Hydraulic Fluid, Water	ASTM A108	000000000	00000
UN/UNF (SAE Straight) Male × BSPP Male
__	1 1/16"-12	12	1/2	__	08	3,500 psi @ 72° F	Air, Hydraulic Fluid, Oil, Water	ISO 1179, ISO 11926, ISO 8434-6, SAE J1926	00000000	00000
__	1 1/16"-12	12	3/4	__	12	3,500 psi @ 72° F	Air, Hydraulic Fluid, Oil, Water	ISO 1179, ISO 11926, ISO 8434-6, SAE J1926	00000000	00000
__	1 1/16"-12	12	1	__	16	3,500 psi @ 72° F	Air, Hydraulic Fluid, Oil, Water	ISO 1179, ISO 11926, ISO 8434-6, SAE J1926	00000000	00000

Replacement Washers

Temperature Range: -20° to 230° F

For BSPP Male
For Pipe Size	Gasket Material	Thickness		Each
1/2	Buna-N Rubber	2.5mm	00000000	00000
3/4	Buna-N Rubber	2.5mm	00000000	0000
1	Buna-N Rubber	3.2mm	00000000	0000

Metal Push-On Barbed Hose Fittings for Air and Water

Fittings have sharper barbs than standard barbed hose fittings to grip rubber push-on hose with no clamps or ferrules required. The more you pull on the fittings, the tighter the hose will grip.

Brass fittings are softer than other metal fittings, so they’re easier to thread together. They have good corrosion resistance. 316 stainless steel fittings have excellent corrosion resistance, so they’re the best choice for high-humidity environments.

Fittings that swivel until tightened rotate 360° for easy installation.

Fittings with a flared end meet JIC or SAE standards for dimensions. Fittings with a 37° flared end are also known as JIC (Joint Industrial Council) fittings.The optional installation tool (sold separately) allows you to connect large quantities of barbed fittings to push-on hose. Use the built-in cutter to squarely cut the hose without fraying. Then, clamp the hose into the tool’s vise and apply light pressure on the handle to drive into the fitting.

Note: To ensure proper connection, the barbed end has to be pushed in all the way, with the hose end concealed by the ring.

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

Straight Adapters, Hose × UN/UNF (Tube End) Male 37° Flared Tube

Maximum Pressure: 300 psi @ 72° F
Temperature Range: -20° to 150° F
Specifications Met: SAE J512, SAE J514

Adapters
			Ring Stop					Replacement Ring Stops
For Hose ID	For Tube OD	Thread Size	Material	Color	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.
Brass
3/4"	3/4"	1 1/16"-12	Plastic	Yellow	1	00000000	000000	25	000000000	00000

Straight Adapters (Swivels Until Tightened), Hose × UN/UNF (Tube End) Female 37° Flared Tube

Maximum Pressure: 300 psi @ 72° F
Temperature Range: -20° to 150° F
Specifications Met: SAE J514

Adapters
			Ring Stop					Replacement Ring Stops
For Hose ID	For Tube OD	Thread Size	Material	Color	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.
316 Stainless Steel
3/4"	3/4"	1 1/16"-12	Plastic	Blue	1	00000000	0000000	25	000000000	00000

Installation Tool

				Mounting Hole
For Hose ID Range	Lg.	Ht.	Dp.	Dia.	No. of	Mounting Fasteners Included		Each
1/4" to 3/4"	13 1/2"	7"	2 3/8"	7/16"	4	No	00000000	0000000

37° Flared Fittings for Copper Tubing

For Use With: Air, Fuel Oil, Mineral Oil, Water
Temperature Range: -40° to 400° F
Tubing: Use with seamless copper
Specifications Met: ISO 8434, MIL-F-18866, 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 can handle higher pressures than 45° flared fittings. Fittings are brass for good corrosion resistance. They require a nut and a sleeve (ferrule) for each tube end. Nuts and sleeves are sold separately.

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

Straight Adapters, Tube × Male Threaded Pipe

NPT Threads
For Tube OD	Pipe Size	Material	Max. Pressure		Each
3/4"	3/4	360 Brass	2,600 psi @ 72° F	000000000	000000

Nuts

For Tube OD	Nut Material		Each
3/4"	360 Brass	000000000	00000

Sleeves

For Tube OD	Sleeve Material		Each
3/4"	360 Brass	000000000	00000

37° Flared Fittings for Stainless Steel Tubing

Tubing: Use with welded or seamless 304 or 316 stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
Specifications Met: ISO 8434, SAE J514, except fittings with BSPP and BSPT threads meet SAE J514 only

Also known as JIC (Joint Industrial Council) fittings, these provide a tight metal-to-metal seal on tubing that is flared to 37°. They are 316 stainless steel for excellent corrosion resistance. Fittings require a nut and a sleeve (ferrule) for each tube end. Nuts and sleeves are sold separately.

BSPP threads and UN/UNF (SAE Straight) male threads have a gasket to protect against leaks. UN/UNF (SAE Straight) threads are also known as O-ring boss threads.

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

Straight Adapters, Tube × Male Threaded Pipe

For Use With: See table
Temperature Range: See table

NPT Threads
For Tube OD	Pipe Size	Thread Size	For Use With	Material	Gasket Material	Max. Pressure	Temp. Range, ° F		Each
3/4"	3/4	__	Air, Hydraulic Fluid, Isopropyl Alcohol, Natural Gas, Phosphoric Acid, Water	316 Stainless Steel	__	4,500 psi @ 72° F	-420 to 1200°	000000000	000000
BSPT Threads
3/4"	3/4	__	Air, Hydraulic Fluid, Natural Gas, Water	316 Stainless Steel	__	6,000 psi @ 72° F	-420 to 1200°	0000000	00000
UN/UNF (SAE Straight) Threads
3/4"	__	7/8"-14	Air, Hydraulic Fluid, Isopropyl Alcohol, Water	316 Stainless Steel	Fluoroelastomer Rubber	6,000 psi @ 72° F	-15 to 400°	000000000	000000
3/4"	__	1 1/16"-12	Air, Hydraulic Fluid, Isopropyl Alcohol, Water	316 Stainless Steel	Fluoroelastomer Rubber	6,000 psi @ 72° F	-15 to 400°	000000000	00000

Nuts

For Use With: Air, Hydraulic Fluid, Isopropyl Alcohol, Natural Gas, Phosphoric Acid, Water
Temperature Range: -420° to 1,200° F

For Tube OD	Nut Material		Each
3/4"	316 Stainless Steel	000000000	000000

Sleeves

For Use With: Air, Hydraulic Fluid, Isopropyl Alcohol, Natural Gas, Phosphoric Acid, Water
Temperature Range: -420° to 1,200° F

Use these sleeves with a nut and fitting to provide a tight metal-to-metal seal on stainless steel tubing that is flared to 37°. Sleeves are 316 stainless steel for excellent corrosion resistance. They are also known as ferrules.

For Tube OD
Inch	Sleeve Material		Each
Inch
3/4"	316 Stainless Steel	000000000	00000

Precision AN 37° Flared Fittings for Stainless Steel Tubing

For Use With: Air, Cutting Oil, Fuel Oil, Hydraulic Fluid, Mineral Oil, Water
Temperature Range: -320° to 1200° F
Tubing: Use with seamless 304 or 316 stainless steel
Specifications Met: See Table

The threads on the tube end of these fittings are Class 3A or 3B and adhere to tighter tolerances than other 37° flared fittings. They are made to exact AS (formerly AN) specifications and provide a tight metal-to-metal seal on tubing that is flared to 37°. Fittings require a nut and a sleeve (ferrule) for each tube end. Nuts and sleeves are sold separately.

304 stainless steel fittings have very good corrosion resistance. 316 stainless steel fittings have excellent corrosion resistance.

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

Straight Adapters, Tube × Male Threaded Pipe

				304 Stainless Steel		316 Stainless Steel
For Tube OD	Pipe Size	Max. Pressure	Specifications Met		Each		Each
ANPT Threads
3/4"	3/4	3,000 psi @ 72° F	AN816-12J, ASTM A380, SAE AS4841	0000000	000000	000000	00
3/4"	3/4	3,000 psi @ 72° F	AN816-12K, ASTM A380, SAE AS4841	000000	00	00000000	000000

Nuts

			304 Stainless Steel		316 Stainless Steel
For Tube OD	Max. Pressure	Specifications Met		Each		Each
3/4"	3,000 psi @ 72° F	AN818-12J, ASTM A380, SAE AS4841	0000000	000000	000000	00
3/4"	3,000 psi @ 72° F	AN818-12K, ASTM A380, SAE AS4841	000000	00	00000000	000000

Sleeves

			304 Stainless Steel		316 Stainless Steel
For Tube OD	Max. Pressure	Specifications Met		Each		Each
3/4"	3,000 psi @ 72° F	AN819-12J, ASTM A380, MS20819, SAE AS4841	0000000	00000	000000	00
3/4"	3,000 psi @ 72° F	AN819-12K, ASTM A380, MS20819, SAE AS4841	000000	00	00000000	00000

Vibration-Resistant Precision AN 37° Flared Fittings for Stainless Steel Tubing

For Use With: Air, Cutting Oil, Fuel Oil, Hydraulic Fluid, Mineral Oil, Water
Temperature Range: -320° to 500° F
Tubing: Use with seamless 304 or 316 stainless steel
Specifications Met: See Table

A PTFE seal on the tube end of these fittings allows for an extra-strong connection in high-vibration applications. The threads on the tube end are Class 3A and adhere to tighter tolerances than other 37° flared fittings. They are made to exact AS (formerly AN) specifications and provide a tight metal-to-metal seal on tubing that is flared to 37°. Fittings are 316 stainless steel for excellent corrosion resistance. They require a nut and a sleeve (ferrule) for each tube end. Nuts and sleeves are sold separately.

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

Straight Adapters, Tube × Male Threaded Pipe

PTFE Seal

ANPT Threads
For Tube OD	Pipe Size	Material	Max. Pressure	Specifications Met		Each
3/4"	3/4	316 Stainless Steel	3,000 psi @ 72° F	ASTM A380, SAE AS9104/1, AN816-12K, SAE AS9100D	00000000	000000

Nuts

For Tube OD	Nut Material	Max. Pressure	Specifications Met		Each
3/4"	316 Stainless Steel	3,000 psi @ 72° F	AN818-12K, ASTM A380, SAE AS4841	00000000	000000

Sleeves

For Tube OD	Sleeve Material	Max. Pressure	Specifications Met		Each
3/4"	316 Stainless Steel	3,000 psi @ 72° F	AN819-12K, ASTM A380, MS20819, SAE AS4841	00000000	00000

37° Flared Fittings for Steel Tubing

BSPP and UN/UNF
(SAE Straight) Male
Threads with Gasket

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.

To prevent leaks, UN/UNF (SAE Straight) male threads have a gasket. Metric and BSPP male threads have either a gasket or a gasket and washer.

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

Straight Adapters, Male Tube × Male Threaded Pipe

BSPP and UN/UNF
(SAE Straight) Male
Threads with Gasket

For Use With: See Table
Temperature Range: See Table

NPTF Threads
For Tube OD	Pipe Size	Thread Size	Thread Pitch, mm	For Use With	Material	Gasket Material	Max. Pressure	Temp. Range, °F		Each
3/4"	3/4	__	__	Air, Fuel Oil, Hydraulic Fluid, Mineral Oil	Zinc-Plated Steel	__	3,300 psi @ 72° F	-60° to 400°	000000000	00000
Metric Threads
3/4"	__	M22	1.5	Air, Fuel Oil, Hydraulic Fluid, Mineral Oil	Zinc-Plated Steel	Buna-N Rubber	2,300 psi @ 72° F	-30° to 200°	00000000	00000
BSPP Threads
3/4"	1/2	__	__	Air, Fuel Oil, Hydraulic Fluid, Mineral Oil	Zinc-Plated Steel	Buna-N Rubber	4,000 psi @ 72° F	-30° to 200°	00000000	00000
3/4"	3/4	__	__	Air, Fuel Oil, Hydraulic Fluid, Mineral Oil	Zinc-Plated Steel	Buna-N Rubber	4,000 psi @ 72° F	-30° to 200°	00000000	00000
3/4"	1	__	__	Air, Fuel Oil, Hydraulic Fluid, Mineral Oil	Zinc-Plated Steel	Buna-N Rubber	3,500 psi @ 72° F	-30° to 200°	00000000	00000
1"	3/4	__	__	Air, Fuel Oil, Hydraulic Fluid, Mineral Oil	Zinc-Plated Steel	Buna-N Rubber	4,000 psi @ 72° F	-30° to 200°	00000000	00000
BSPT Threads
3/4"	3/4	__	__	Air, Fuel Oil, Hydraulic Fluid, Mineral Oil	Zinc-Plated Steel	__	4,000 psi @ 72° F	-60° to 400°	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
3/4"	Zinc-Plated Steel	3,000 psi @ 72° F	000000000	00000
1"	Zinc-Plated Steel	2,500 psi @ 72° F	000000000	0000

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
3/4"	Zinc-Plated Steel	3,000 psi @ 72° F	000000000	00000
1"	Zinc-Plated Steel	2,500 psi @ 72° F	000000000	0000

37° Flared Fittings for Aluminum Tubing

For Use With: Air, Coolant, Gasoline, Hydraulic Fluid, Water
Temperature Range: -60° to 400° F
Tubing: Use with seamless aluminum

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

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

Straight Adapters, Tube × Male Threaded Pipe

NPT Threads
For Tube OD	Pipe Size	Material	Max. Pressure		Each
3/4"	3/4	Anodized 2024 Aluminum	3,000 psi @ 72° F	0000000	000000

Nuts

For Tube OD	Nut Material	Max. Pressure		Each
3/4"	Anodized 2024 Aluminum	3,000 psi @ 72° F	0000000	00000

Sleeves

For Tube OD	Sleeve Material	Max. Pressure		Each
3/4"	Anodized 2024 Aluminum	3,000 psi @ 72° F	0000000	00000