Yor-Lok Tube Adapters | McMaster-Carr

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	Connection Style Connection Style	Show

Yor-Lok

	Connection Style Connection Style	Hide

	System of Measurement System of Measurement

Inch

Metric

	For Tube OD For Tube OD

	Shape Shape


Straight	90° Elbow

Tee	Manifold

45° Elbow	Cross

	Pipe Size Pipe Size

	Thread Type Thread Type

UN/UNF (SAE Straight)

	Material Material

	Type Type


Adapter	Reducer

Connector	Tube Support

Flange

	For Tube Material For Tube Material

	Gender Gender

Male

Female

	Connection Type Connection Type

	Tube
	Pipe
	Hose

	Yor-Lok Connection Type Yor-Lok Connection Type


Standard	Tube Stem

Sleeve

	For Use With For Use With

	Sleeve Material Sleeve Material

Stainless Steel

Brass

Nickel

	Nut Material Nut Material

	Maximum Pressure Maximum Pressure

	Compatible With Compatible With

	For Tube Fabrication For Tube Fabrication

Seamless

Welded

	For Tube Wall Thickness For Tube Wall Thickness

	Maximum Temperature Maximum Temperature

	Dash Size Dash Size

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

RoHS Compliant

RoHS Compliant with
Exemptions

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

REACH Compliant

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1,337 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.

Yor-Lok Fittings for Stainless Steel Tubing

Use these fittings at pressures up to 9,700 psi. Also known as instrumentation fittings, they are made to tight tolerances for use in high-precision applications. They are compatible with Swagelok®, Let-Lok, and Parker A-Lok fittings.

Cleaned and Bagged Yor-Lok
Fittings for Stainless Steel Tubing

For applications that require an extra level of cleanliness, these fittings are individually bagged to prevent contamination.

Tube Supports for Yor-Lok Fittings

Use with soft plastic tubing to prevent the tube from collapsing.

Extreme-Pressure Yor-Lok
Fittings for Stainless Steel Tubing

These fittings have the highest pressure rating of all the Yor-Lok tube fittings we offer.

Quick-Clamp High-Vacuum
Fittings for Stainless Steel Tubing

Also known as KF, QF, and NW fittings, these fittings are for high-vacuum applications, such as vacuum coating and heat treating, leak testing, and analyzing gases.

Ultra-High-Polish Gasket Fittings
for Stainless Steel Tubing

Polished to a 15 Ra and under finish, these fittings have a mirror smooth interior. They are also known as ultra-high-purity fittings.

Through-Wall Fittings for High-Vacuum Chambers

Transfer liquids and gasses into high-vacuum chambers with these assembled fittings, also known as feedthroughs.

Yor-Lok Fittings for Copper Tubing

Tube Supports for Yor-Lok Fittings for Copper Tubing

Yor-Lok Fittings for Steel Tubing

These fittings have two sleeves for extra gripping power. They bite into steel tubing as you tighten the nut to form a strong seal.

Acid-Resistant Yor-Lok Fittings for Nickel Alloy Tubing

These Monel fittings have the corrosion resistance to handle hydrofluoric and sulfuric acid. Also known as instrumentation fittings, they include a nut with two sleeves.

Ultra-Corrosion-Resistant Yor-Lok
Fittings for Nickel Alloy Tubing

With the best corrosion resistance of any metal fitting we offer, these Hastelloy fittings will stand up to aggressive chemicals and are resistant to pitting and stress cracking. Also known as instrumentation fittings, they include a nut with two sleeves.