5mm Tube Fittings | McMaster-Carr

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29 in. Hg @ 72° F

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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.

Male
Threads
with Gasket

Temperature Range: 0° to 175° F
Tubing: Use with firm (Durometer 85A-100A) nylon plastic or polyurethane rubber
Specifications Met: ISO 14743

Make lightweight connections without the hassle of matching the exact thread type—these fittings connect to NPT, NPTF, BSPP, BSPT, and other universal threads. With a nylon body and nickel-plated brass threads, these fittings are lighter than most metal fittings, and withstand corrosion better than plain brass threads. They also have a reusable gasket to guard against leaks. Connect the tube ends to tubing with a push, and an internal gripping ring and O-ring hold the tubing tight. To disconnect them, push the release ring and pull the tubing out of the fitting. These fittings are sometimes known as instant fittings. All meet ISO 14743, which is an international standard for push-to-connect fittings for plastic tubing.

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

Short 90° Elbow Adapter (Intermittent Swivel), Tube × Male Threaded Pipe

Male
Threads
with Gasket

						Release Ring
For Tube OD	Pipe Size	Tube Connection Material	Pipe Connection Material	Gasket Material	Color	Material	Color	Maximum Pressure		Each
BSPP, BSPT, NPT, NPTF, Universal Threads
5mm	1/8	Nylon Plastic	Nickel-Plated Brass	Buna-N Rubber	Black	Plastic	Black	250 psi @ 72° F	00000000	00000

Inline Tee Adapter (Intermittent Swivel), Tube × Male Threaded Pipe

Male
Threads
with Gasket

						Release Ring
For Tube OD	Pipe Size	Tube Connection Material	Pipe Connection Material	Gasket Material	Color	Material	Color	Maximum Pressure		Each
BSPP, BSPT, NPT, NPTF, Universal Threads
5mm	1/8	Nylon Plastic	Nickel-Plated Brass	Buna-N Rubber	Black	Plastic	Black	250 psi @ 72° F	00000000	00000

Right-Angle Tee Adapters (Intermittent Swivel), Tube × Male Threaded Pipe

Male
Threads
with Gasket

						Release Ring
For Tube OD	Pipe Size	Tube Connection Material	Pipe Connection Material	Gasket Material	Color	Material	Color	Maximum Pressure		Each
BSPP, BSPT, NPT, NPTF, Universal Threads
5mm	1/8	Nylon Plastic	Nickel-Plated Brass	Buna-N Rubber	Black	Plastic	Black	250 psi @ 72° F	00000000	00000

Universal-Thread Nickel-Plated Brass
Push-to-Connect Tube Fittings for Air and Water

Male
Threads
with Gasket

Temperature Range: 0° to 175° F
Tubing: Use with firm (Durometer 85A-100A) nylon plastic or polyurethane rubber
Specifications Met: ISO 14743

Made of nickel-plated brass, these tube fittings resist corrosion better than plain brass fittings. The male threaded ends connect to NPT, NPTF, BSPP, BSPT, and other universal threads, so you don’t have to bother matching exact thread types. They also have a reusable gasket to protect against leaks. The tube ends connect to tubing with a push, and an internal gripping ring and O-ring hold the tubing tight. To disconnect them, push the release ring and pull the tubing out of the fitting. These fittings are sometimes called instant fittings. All meet ISO 14743, which is an international standard for push-to-connect fittings for plastic tubing.

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

Straight Adapters with Hex Body, Tube × Male Threaded Pipe

Male
Threads
with Gasket

					Plastic Release Ring
For Tube OD	Pipe Size	Material	Gasket Material	Maximum Pressure	Release Ring Color		Each
BSPP, BSPT, NPT, NPTF, Universal Threads
5mm	1/8	Nickel-Plated Brass	Buna-N Rubber	290 psi @ 72° F	Black	00000000	00000
5mm	1/4	Nickel-Plated Brass	Buna-N Rubber	290 psi @ 72° F	Black	00000000	0000

Short 90° Elbow Adapters (Intermittent Swivel), Tube × Male Threaded Pipe

Male
Threads
with Gasket

Fittings with intermittent swivel rotate 360° before and after installation as needed, which allows movement in your system and prevents kinking.

					Plastic Release Ring
For Tube OD	Pipe Size	Material	Gasket Material	Maximum Pressure	Release Ring Color		Each
BSPP, BSPT, NPT, NPTF, Universal Threads
5mm	1/8	Nickel-Plated Brass	Buna-N Rubber	290 psi @ 72° F	Black	00000000	00000

Inline Tee Adapters (Intermittent Swivel), Tube × Male Threaded Pipe

Male
Threads
with Gasket

Fittings with intermittent swivel rotate 360° before and after installation as needed, which allows movement in your system and prevents kinking.

					Plastic Release Ring
For Tube OD	Pipe Size	Material	Gasket Material	Maximum Pressure	Release Ring Color		Each
BSPP, BSPT, NPT, NPTF, Universal Threads
5mm	1/8	Nickel-Plated Brass	Buna-N Rubber	290 psi @ 72° F	Black	00000000	00000

Nickel-Plated Brass Push-to-Connect Tube Fittings for Air

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

For Use With: Air, Lubricated Air
Temperature Range: 0° to 140° F
Tubing: Fittings with Release Ring and Fittings with no Release Type: Use with firm or hard (Durometer 95A-60D) nylon plastic, polyethylene plastic or polyurethane rubber
Fittings with Release Sleeve: Use with firm or hard (Durometer 95A-60D) polyethylene plastic or polyurethane rubber

Made of nickel-plated brass, these fittings have better corrosion resistance than unplated brass fittings. Also known as instant fittings, they connect to tubing with a push, and an internal gripping ring and O-ring hold the tubing tight. To disconnect, push on the release ring or sleeve and pull the tubing out of the fitting.

Fittings with release sleeve are easier to disconnect than fittings with a release ring because they are seamless and won't collect dirt and debris.

Metric and UN/UNF (SAE Straight) male threads with gasket or thread sealant provide extra protection against leaks. UN/UNF (SAE Straight) threads are also known as O-ring boss threads.

NPTF (Dryseal) threads are compatible with NPT threads.

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

Straight Adapters, Tube × Male Threaded Pipe

Release Ring

Release Sleeve

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

Release Ring
For Tube OD	Pipe Size	Thread Size	Thread Pitch, mm	Material	Gasket Material	Max. Pressure		Each
NPT, NPTF, BSPP, BSPT, Universal Threads
5mm	1/4	__	__	Nickel-Plated Brass	Buna-N Rubber	250 psi @ 72° F	00000000	00000
Metric Threads
5mm	__	M5	0.8	Nickel-Plated Brass	Buna-N Rubber	250 psi @ 72° F	00000000	0000
Release Sleeve
Metric Threads
5mm	__	M3	0.5	Nickel-Plated Brass	Buna-N Rubber	230 psi @ 72° F	00000000	00000
5mm	__	M5	0.8	Nickel-Plated Brass	Buna-N Rubber	230 psi @ 72° F	00000000	0000
5mm	__	M6	1	Nickel-Plated Brass	Buna-N Rubber	230 psi @ 72° F	00000000	00000
UN/UNF (SAE Straight) Threads
5mm	__	10-32	__	Nickel-Plated Brass	Buna-N Rubber	230 psi @ 72° F	00000000	00000

Straight Connectors, Tube

Release Ring

			Release Ring
For Tube OD	Material	Max. Pressure		Each
5mm	Nickel-Plated Brass	230 psi @ 72° F	000000000	000000

90° Elbow Adapters, Tube × Male Threaded Pipe

				Release Ring
For Tube OD	Pipe Size	Material	Max. Pressure		Each
NPT, BSPP, BSPT, NPTF, Universal Threads
5mm	1/8	Nickel-Plated Brass	250 psi @ 72° F	00000000	000000
5mm	1/4	Nickel-Plated Brass	250 psi @ 72° F	00000000	00000

90° Elbow Adapters (Intermittent Swivel), Tube × Male Threaded Pipe

Release Ring

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

Fittings with intermittent swivel rotate 360° before and after installation as needed to allow movement in the system and to prevent kinking.

Release Ring
For Tube OD	Pipe Size	Thread Size	Thread Pitch, mm	Material	Gasket Material	Max. Pressure		Each
NPT, BSPP, BSPT, NPTF, Universal Threads
5mm	1/8	__	__	Nickel-Plated Brass	Buna-N Rubber	250 psi @ 72° F	00000000	000000
Metric Threads
5mm	__	M5	0.8	Nickel-Plated Brass	Buna-N Rubber	250 psi @ 72° F	00000000	00000
Release Sleeve
Metric Threads
5mm	__	M5	0.8	Nickel-Plated Brass	Buna-N Rubber	230 psi @ 72° F	00000000	00000
5mm	__	M6	1	Nickel-Plated Brass	Buna-N Rubber	230 psi @ 72° F	00000000	00000

90° Elbow Connectors, Tube

Release Ring

			Release Ring
For Tube OD	Material	Max. Pressure		Each
5mm	Nickel-Plated Brass	230 psi @ 72° F	000000000	000000

Tee Connectors, Tube

			Release Ring
For Tube OD	Material	Max. Pressure		Each
5mm	Nickel-Plated Brass	230 psi @ 72° F	000000000	000000

Tube Supports for Brass Compression Tube Fittings for Air and Water

Use these sleeves with brass compression nuts and fittings to create a seal on plastic and rubber tubing. They are brass, so they won’t damage tubing.

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

For Use With Air and Lubricated Air

Temperature Range: -65° to 250° F
Tubing:
Tube supports with 135 psi @ 75° F or 165 psi @ 75° F max. pressures: Use with firm or soft polyethylene plastic or PVC plastic
Tube supports with all other max. pressures: Use with firm or soft (Durometer 1A-95A) polyethylene plastic or polypropylene plastic
Specifications Met: SAE J512, except metric sizes

For Tube
OD	ID	Tube Support Material	Max. Pressure	Pkg. Qty.		Pkg.
5mm	3mm	Brass	2750 psi @ 72° F	1	000000000	00000

Push-to-Connect Fittings for Food and Beverage

Temperature Range: 35° to 140° F
Tubing: See table
Specifications Met: See table

Also known as instant fittings, these connect to tubing with a push, and an internal gripping ring and O-ring hold the tubing tight. To disconnect fittings with a release ring, push on the release ring and pull the tubing out of the fitting.

Acetal fittings resist moisture, so they won’t soften and lose strength in humid environments. They meet NSF/ANSI 51 for safe use with food and NSF/ANSI 61 for safe use with drinking water.

Black fittings have excellent UV resistance and are suitable for outdoor environments.

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

Straight Adapters, Tube × Male Threaded Pipe

BSPP Threads
For Tube OD	Pipe Size	Material	Max. Pressure	Length	For Tube Hardness Rating	For Tube Hardness	Specifications Met		Each
Black
5mm	1/8	Acetal Plastic	150 psi @ 72° F	25mm	Hard	Durometer 85D-95D	NSF/ANSI 51, NSF/ANSI 61	0000000	00000

Straight Connectors, Tube

Black
For Tube OD	Material	Max. Pressure	For Tube Hardness Rating	For Tube Hardness	Specifications Met		Each
5mm	Acetal Plastic	150 psi @ 72° F	Hard	Durometer 85D-95D	NSF/ANSI 51, NSF/ANSI 61	0000000	00000

Straight Reducers, Tube

Black
For Tube OD (A)	For Tube OD (B)	Material	Max. Pressure	For Tube Hardness Rating	For Tube Hardness	Specifications Met		Each
6mm	5mm	Acetal Plastic	150 psi @ 72° F	Hard	Durometer 85D-95D	NSF/ANSI 51, NSF/ANSI 61	0000000	00000
8mm	5mm	Acetal Plastic	150 psi @ 72° F	Hard	Durometer 85D-95D	NSF/ANSI 51, NSF/ANSI 61	0000000	0000
10mm	5mm	Acetal Plastic	150 psi @ 72° F	Hard	Durometer 85D-95D	NSF/ANSI 51, NSF/ANSI 61	0000000	0000

Straight Adapters, Tube Stem × Tube

Fittings with tube stem insert into the push-to-connect end of another fitting in place of a length of tubing.

Black
Tube Stem OD, mm	For Tube OD, mm	Material	Release Ring Material	Max. Pressure	For Tube Hardness Rating	For Tube Hardness	Specifications Met		Each
6	5	Acetal Plastic	Plastic	150 psi @ 72° F	Hard	Durometer 85D-95D	NSF/ANSI 51, NSF/ANSI 61	0000000	00000

90° Elbow Connectors, Tube

Black
For Tube OD	Material	Max. Pressure	For Tube Hardness Rating	For Tube Hardness	Specifications Met		Each
5mm	Acetal Plastic	150 psi @ 72° F	Hard	Durometer 85D-95D	NSF/ANSI 51, NSF/ANSI 61	0000000	00000

Push-to-Connect Tube Fittings for Drinking Water

BSPP Male Threads
with
Gasket

Temperature Range: 35° to 150° F
Tubing: See table
Specifications Met: NSF/ANSI 61

Made of moisture-resistant acetal, these fittings won't absorb water and lose strength, even in high-humidity environments. Also known as instant fittings, they connect to tubing with a push, and an internal gripping ring and O-ring hold the tubing tight. To disconnect, push on the release ring and pull the tubing out of the fitting. All meet NSF/ANSI 61 for use in drinking water systems.

BSPP male threads have a gasket to protect against leaks.

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

Straight Adapters, Tube × Male Threaded Pipe

BSPP Male Threads
with
Gasket

							For Tube
For Tube OD	Pipe Size	Material	Color	Gasket Material	Release Ring Color	Max. Pressure	Material	Hardness Rating		Each
BSPP Threads
5mm	1/8	Acetal Plastic	Black	Buna-N Rubber	Black	230 psi @ 72° F	Nylon Plastic, Polyethylene Plastic	Firm, Hard	00000000	00000
5mm	1/4	Acetal Plastic	Black	Buna-N Rubber	Black	230 psi @ 72° F	Nylon Plastic, Polyethylene Plastic	Firm, Hard	00000000	0000
BSPT Threads
5mm	1/8	Acetal Plastic	Black	__	Black	230 psi @ 72° F	Nylon Plastic, Polyethylene Plastic	Firm, Hard	00000000	0000
5mm	1/4	Acetal Plastic	Black	__	Black	230 psi @ 72° F	Nylon Plastic, Polyethylene Plastic	Firm, Hard	00000000	0000

Straight Adapters, Tube Stem × Tube

Fittings with tube stem insert into the push-to-connect end of another fitting in place of a length of tubing.

						For Tube
Tube Stem OD	For Tube OD	Material	Color	Release Ring Color	Max. Pressure	Material	Hardness Rating		Each
6mm	5mm	Acetal Plastic	Black	Black	230 psi @ 72° F	Nylon Plastic, Polyethylene Plastic	Firm, Hard	00000000	00000

Straight Connectors, Tube

					For Tube
For Tube OD	Material	Color	Release Ring Color	Max. Pressure	Material	Hardness Rating		Each
5mm	Acetal Plastic	Black	Black	230 psi @ 72° F	Nylon Plastic, Polyethylene Plastic	Firm, Hard	00000000	00000

Through-Wall Straight Connectors, Tube

Through-wall fittings are also known as bulkhead couplings and panel-mount couplings; they mount through your wall or panel to create an inlet or outlet.

					For Tube
For Tube OD	Material	Color	Release Ring Color	Max. Pressure	Material	Hardness Rating	For Hole Dia.	For Max. Wall Thick.		Each
5mm	Acetal Plastic	Black	Black	230 psi @ 72° F	Nylon Plastic, Polyethylene Plastic	Firm, Hard	16.5mm	13.5mm	00000000	00000

90° Elbow Adapters (Intermittent Swivel), Tube × Male Threaded Pipe

Fittings with intermittent swivel rotate 360° before and after installation as needed to allow movement in the system and to prevent kinking.

						For Tube
For Tube OD	Pipe Size	Material	Color	Release Ring Color	Max. Pressure	Material	Hardness Rating		Each
BSPT Threads
5mm	1/8	Acetal Plastic	Black	Black	230 psi @ 72° F	Nylon Plastic, Polyethylene Plastic	Firm, Hard	00000000	00000

90° Elbow Adapters, Tube Stem × Push-to-Connect Tube

Fittings with tube stem insert into the push-to-connect end of another fitting in place of a length of tubing.

						For Tube
Tube Stem OD	For Tube OD	Material	Color	Release Ring Color	Max. Pressure	Material	Hardness Rating		Each
5mm	5mm	Acetal Plastic	Black	Black	230 psi @ 72° F	Nylon Plastic, Polyethylene Plastic	Firm, Hard	00000000	00000

90° Elbow Connectors, Tube

					For Tube
For Tube OD	Material	Color	Release Ring Color	Max. Pressure	Material	Hardness Rating		Each
5mm	Acetal Plastic	Black	Black	230 psi @ 72° F	Nylon Plastic, Polyethylene Plastic	Firm, Hard	00000000	00000

Tee Connectors, Tube

					For Tube
For Tube OD	Material	Color	Release Ring Color	Max. Pressure	Material	Hardness Rating		Each
5mm	Acetal Plastic	Black	Black	230 psi @ 72° F	Nylon Plastic, Polyethylene Plastic	Firm, Hard	00000000	00000

Drill-and-Install Push-to-Connect Tube Fittings for Drinking Water

Temperature Range: 35° to 150° F
Tubing: Use with firm or hard nylon plastic or polyethylene plastic
Specifications Met: NSF/ANSI 51, NSF/ANSI 61

Create a push-to-connect junction between tubing and unthreaded ports in your equipment. As an alternative to installing a threaded port, insert these fittings in equipment such as taps, manifolds, and flow direction splitters. Also known as instant fittings, they have a grasping ring and O-ring that hold your tubing in place, and a release ring that disconnects it. Made of moisture-resistant acetal, these fittings won’t soften and lose strength in high-humidity environments. They meet NSF/ANSI 61 for use in drinking water systems and NSF/ANSI 51 for use with food. Use them in low-pressure applications.

To install, drill a stepped hole in your surface using tools such as a CNC machine or lathe. After removing all debris and burrs from the hole, push the fitting components into place. Then insert your tubing until the tube end is flush against the tube stop. To disconnect, push on the release ring and pull the tubing out.

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

		Release Ring			Required Hole Dia. for			Required Hole Dp. for
For Tube OD	Material	Material	Color	Max. Pressure	Grasping Ring	O-Ring	Tube Stop	Grasping Ring	O-Ring	Tube Stop	Hole Dia. Tolerance	Max. Through Hole Dia.		Each
5mm	Acetal Plastic	Plastic	Black	230 psi @ 72° F	11.98mm	9.06mm	5.13mm	4.9mm	8.63mm	12.44mm	-0.05mm to 0.05mm	4.3mm	00000000	00000

Compression Fittings for Copper Tubing

For Use With: Air, Cutting Oil, Fuel Oil, Hydraulic Fluid, Mineral Oil, Water
Temperature Range: See Table
Tubing: Use with copper
Specifications Met: See Table

A single sleeve (ferrule) bites into tubing as you tighten the nut, creating a strong seal. The nut and sleeve are included. Fittings are also known as flareless fittings. They are brass for good corrosion resistance.

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

Straight Adapters, Tube × Male Threaded Pipe

For Tube
OD	Wall Thick.	Pipe Size	Thread Size	Thread Pitch, mm	Material	Gasket Material	Max. Pressure	Temp. Range, °F		Each
Metric Threads
5mm	1mm	__	M8	1	Brass	__	2,700 psi @ 72° F	-40° to 250°	00000000	00000
5mm	1mm	__	M10	1	Brass	__	2,700 psi @ 72° F	-40° to 250°	00000000	0000
BSPP Threads
5mm	1mm	1/8	__	__	Brass	Polymer Plastic	2,700 psi @ 72° F	-40° to 250°	00000000	0000
BSPT Threads
5mm	1mm	1/8	__	__	Brass	__	2,700 psi @ 72° F	-40° to 250°	00000000	0000
5mm	1mm	1/4	__	__	Brass	__	2,700 psi @ 72° F	-40° to 250°	00000000	00000

Straight Adapters, Tube × Female Threaded Pipe

For Tube
OD	Wall Thick.	Pipe Size	Material	Max. Pressure	Temp. Range, °F		Each
BSPP Threads
5mm	1mm	1/8	Brass	2,700 psi @ 72° F	-40° to 250°	00000000	00000

Straight Connectors, Tube

For Tube
OD	Wall Thick.	Material	Max. Pressure	Temp. Range, °F		Each
5mm	1mm	Brass	2,700 psi @ 72° F	-40° to 250°	00000000	00000

90° Elbow Adapters, Tube × Male Threaded Pipe

For Tube
OD	Wall Thick.	Pipe Size	Material	Max. Pressure	Temp. Range, °F		Each
BSPT Threads
5mm	1mm	1/8	Brass	2,700 psi @ 72° F	-40° to 250°	00000000	000000

Sleeves for Compression Fittings for Copper Tubing

For Use With: Air, Cutting Oil, Fuel Oil, Hydraulic Fluid, Mineral Oil, Water
Temperature Range: -65° to 200° F, except metric fittings are -40° to 250° F
Tubing: Use with copper
Specifications Met: UL listed, except for metric fittings

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

For Tube
OD	Wall Thick.	Sleeve Material	Max. Pressure	Pkg. Qty.		Pkg.
5mm	Not Rated	Brass	Not Rated	1	0000000	00000

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How to Identify and Measure Fittings

Universal-Thread Push-to-Connect Tube Fittings for Air and Water

Universal-Thread Nickel-Plated Brass
Push-to-Connect Tube Fittings for Air and Water

Nickel-Plated Brass Push-to-Connect Tube Fittings for Air

Tube Supports for Brass Compression Tube Fittings for Air and Water

Push-to-Connect Fittings for Food and Beverage

Push-to-Connect Tube Fittings for Drinking Water

Drill-and-Install Push-to-Connect Tube Fittings for Drinking Water

Compression Fittings for Copper Tubing

Sleeves for Compression Fittings for Copper Tubing

How to Identify and Measure Fittings

Universal-Thread Push-to-Connect Tube Fittings for Air and Water

Universal-Thread Nickel-Plated BrassPush-to-Connect Tube Fittings for Air and Water

Nickel-Plated Brass Push-to-Connect Tube Fittings for Air

Tube Supports for Brass Compression Tube Fittings for Air and Water

Push-to-Connect Fittings for Food and Beverage

Push-to-Connect Tube Fittings for Drinking Water

Drill-and-Install Push-to-Connect Tube Fittings for Drinking Water

Compression Fittings for Copper Tubing

Sleeves for Compression Fittings for Copper Tubing

Universal-Thread Nickel-Plated Brass
Push-to-Connect Tube Fittings for Air and Water