Metric Wyes | McMaster-Carr

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Shape

Wye

System of Measurement

Tube OD

Thread Type

UN/UNF (SAE Straight)

UNF

Universal

Thread Size

Connects To

Fitting Connection

Gender

Release Ring Material

Thread Pitch

Clarity

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

EAR99

For Tube Hardness

Durometer 90A to Durometer 95A

Durometer 95A to Durometer 45D

Gasket Material

Buna-N

Hardness

Durometer 90A to Durometer 95A

Durometer 95A to Durometer 45D

Maximum Temperature

Less than 200° F

Maximum Vacuum @ Temperature

Minimum Temperature

O-Ring Material

REACH

Relative Vacuum Rating

Standard

RoHS

Compliant with Exemptions

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Maximum Pressure @ Temperature

7 Products

About Measuring Fittings

Measure the threaded ends of your fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.

Push-to-Connect Tube Fittings for Air

Temperature Range: 0° to 170° F, except polybutylene plastic fittings are 32° to 140° F
Tubing: Use with firm (Durometer 95A-45D) polyethylene plastic or polyurethane rubber
Specifications Met: ISO 14743, except cartridges and polybutylene plastic fittings

Insert tubing into these fittings and an internal gripping ring and O-ring hold the tubing tight. They are also known as instant fittings. To disconnect, push on the release ring and pull the tubing out of the fitting. Fittings have good corrosion resistance. Use them in low-pressure applications.

Identification rings (sold separately) snap over the release ring so you can color-code your lines.

Clips (sold separately) align and organize your tubing and fittings.

Metric male threads have either a gasket or a thread sealant to protect against leaks.

Wye Adapters (Intermittent Swivel), Male Threaded Pipe × Tube

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

Metric Threads
Thread Size	Thread Pitch, mm	For Tube OD	Pipe Connection Material	Tube Connection Material	Gasket Material	Color	Release Ring Color	Max. Pressure		Each
M5	0.8	4mm	Nickel-Plated Brass	Nylon Plastic	Buna-N Rubber	Black	Black	290 psi @ 72° F	5225K865	000000
M5	0.8	6mm	Nickel-Plated Brass	Nylon Plastic	Buna-N Rubber	Black	Black	290 psi @ 72° F	5225K868	00000

Identification Rings

				Each
For Tube OD	Material	Choose a Color		1-19	20-99	100-Up
6mm	Nylon Plastic	Blue, Green, Red, White, Yellow	5779K801	00000	00000	00000

Moisture-Resistant Push-to-Connect Tube Fittings for Air and Water

These fittings won’t absorb moisture, so they’re good for water and high-humidity air applications. 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. They have good corrosion resistance.

Nickel-plated brass fittings have better corrosion resistance than unfinished brass fittings.

Metric male threads have a gasket to protect against leaks.

Wye Adapters (Intermittent Swivel), Male Threaded Pipe × Tube

For Use With: Air, Lubricated Air, Water
Temperature Range: 32° to 100° F
Tubing: Use with firm (Durometer 90A-95A) nylon plastic or polyurethane rubber

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

						Release Ring
Thread Size	Thread Pitch, mm	For Tube OD	Tube Connection Material	Gasket Material	Color	Material	Color	Max. Pressure	Mount Type	Mounting Fasteners Included	Choose a Pipe Connection Material		Each
Metric Threads
M5	0.8	4mm	Polybutylene Plastic	Buna-N Rubber	Gray	Plastic	Gray	140 psi @ 72° F	Screw On	No	Brass, Nickel-Plated Brass	7880T556	00000
M5	0.8	6mm	Polybutylene Plastic	Buna-N Rubber	Gray	Plastic	Gray	140 psi @ 72° F	Screw On	No	Brass, Nickel-Plated Brass	7880T558	0000
M6	1	4mm	Polybutylene Plastic	Buna-N Rubber	Gray	Plastic	Gray	140 psi @ 72° F	Screw On	No	Brass, Nickel-Plated Brass	7880T557	0000
M6	1	6mm	Polybutylene Plastic	Buna-N Rubber	Gray	Plastic	Gray	140 psi @ 72° F	Screw On	No	Brass, Nickel-Plated Brass	7880T559	0000