Copper Tube-to-Pipe Adapters | McMaster-Carr

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Material

Fitting Connection

Yor-Lok Tube Stem

System of Measurement

Pipe Size

Tube Stem OD

Shape

Gender

Tube OD

Fitting Type

Thread Type

Connects To

For Use With

Hydraulic Fluid

Tube Material

Maximum Pressure @ Temperature

350 psi @ 72° F

800 psi @ 72° F

1,000 psi @ 72° F

1,100 psi @ 72° F

1,200 psi @ 72° F

1,300 psi @ 72° F

1,600 psi @ 72° F

1,650 psi @ 72° F

2,800 psi @ 72° F

RoHS

DFARS Specialty Metals

Fabrication

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

Minimum Temperature

-49° F to -1° F

Specifications Met

REACH

Export Control Classification Number (ECCN)

For Tube Fabrication

Dash Size

Maximum Temperature

250° F to 499° F

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About Pipe and Fittings

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

Yor-Lok Fittings for Copper Tubing

For Use With: Air, Cutting Oil, Diesel Fuel, Fuel Oil, Gasoline, Hydraulic Fluid, Mineral Oil, Water
Temperature Range: -40° to 400° F
Tubing: Use with seamless copper
Specifications Met: ASME B31.3

A nut with two sleeves (ferrules) gives these fittings extra gripping power. The sleeves bite into tubing as you tighten the nut, creating a strong seal. Also known as instrumentation fittings, they are made to tight tolerances for use in high-precision applications. Fittings are brass for good corrosion resistance. They are compatible with Swagelok®, Let-Lok, and A-Lok fittings.

Straight Adapters, Tube Stem × Male Threaded Pipe

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

NPT Threads
Tube Stem OD	Pipe Size	Material	Max. Pressure		Each
1/4"	1/8	Brass	1,600 psi @ 72° F	5272K721	00000
1/4"	1/4	Brass	1,600 psi @ 72° F	5272K722	0000
3/8"	1/4	Brass	1,000 psi @ 72° F	5272K723	0000
3/8"	3/8	Brass	1,000 psi @ 72° F	5272K724	0000
1/2"	1/4	Brass	1,200 psi @ 72° F	5272K426	00000
1/2"	3/8	Brass	800 psi @ 72° F	5272K725	00000
1/2"	1/2	Brass	800 psi @ 72° F	5272K726	00000
3/4"	3/4	Brass	1,000 psi @ 72° F	5272K427	00000
1"	1	Brass	1,000 psi @ 72° F	5272K428	00000

Straight Adapters, Tube Stem × Female Threaded Pipe

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

NPT Threads
Tube Stem OD	Pipe Size	Material	Max. Pressure		Each
1/4"	1/8	Brass	1,300 psi @ 72° F	5272K429	000000
1/4"	1/4	Brass	1,300 psi @ 72° F	5272K431	00000
3/8"	1/4	Brass	1,100 psi @ 72° F	5272K432	00000
1/2"	1/4	Brass	1,200 psi @ 72° F	5272K433	00000
1/2"	1/2	Brass	1,200 psi @ 72° F	5272K434	00000

Straight Adapters, Tube Stem × Tube

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

	For Tube
Tube Stem OD	OD	Wall Thick.	Material	Max. Pressure		Each
1/8"	1/16"	0.01"	Brass	1,650 psi @ 72° F	5272K445	000000
1/8"	1/4"	0.028"	Brass	1,300 psi @ 72° F	5272K446	00000
1/4"	1/8"	0.028"	Brass	1,300 psi @ 72° F	5272K447	00000
1/4"	1/4"	0.028"	Brass	1,300 psi @ 72° F	5272K448	00000
1/4"	3/8"	0.035"	Brass	1,100 psi @ 72° F	5272K449	00000
3/8"	1/4"	0.028"	Brass	1,100 psi @ 72° F	5272K451	00000
3/8"	1/2"	0.049"	Brass	1,100 psi @ 72° F	5272K452	00000
1/2"	1/4"	0.028"	Brass	1,200 psi @ 72° F	5272K453	00000
1/2"	3/8"	0.035"	Brass	1,100 psi @ 72° F	5272K454	00000
3/4"	1/2"	0.049"	Brass	1,100 psi @ 72° F	5272K455	00000

Straight Adapters, Tube Stem × Sleeve

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

Fittings with sleeve end allow you to connect two fittings closely together by replacing the sleeves in one fitting.

	For Tube
Tube Stem OD	OD	Wall Thick.	Material	Max. Pressure		Each
1/8"	1/8"	0.028"	Brass	2,800 psi @ 72° F	5272K456	000000
1/4"	1/4"	0.028"	Brass	1,300 psi @ 72° F	5272K457	0000
1/4"	3/8"	0.035"	Brass	1,100 psi @ 72° F	5272K458	00000
3/8"	3/8"	0.035"	Brass	1,100 psi @ 72° F	5272K459	00000
1/2"	1/2"	0.049"	Brass	1,200 psi @ 72° F	5272K461	00000

Straight Adapters, Tube Stem × Push-On Barbed Hose

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

Tube Stem OD	For Hose ID	Material	Max. Pressure		Each
1/4"	1/4"	Brass	350 psi @ 72° F	5272K462	000000
3/8"	3/8"	Brass	350 psi @ 72° F	5272K463	00000
1/2"	1/2"	Brass	350 psi @ 72° F	5272K464	00000

Nuts

For Tube OD	Nut Material	Max. Pressure		Each
1/16"	Brass	5,400 psi @ 72° F	5272K511	00000
1/8"	Brass	2,900 psi @ 72° F	5272K124	0000
1/4"	Brass	1,600 psi @ 72° F	5272K121	0000
3/8"	Brass	1,000 psi @ 72° F	5272K122	0000
1/2"	Brass	800 psi @ 72° F	5272K123	0000

Front and Back Sleeves

		Front Sleeve		Back Sleeve
For Tube OD	Sleeve Material	Lg.	No. Included	Lg.	No. Included	Max. Pressure		Each
1/16"	Brass	3/32"	1	1/16"	1	5,400 psi @ 72° F	5272K601	00000
1/8"	Brass	3/16"	1	3/32"	1	2,900 psi @ 72° F	5272K602	0000
1/4"	Brass	3/16"	1	3/32"	1	1,600 psi @ 72° F	5272K604	0000
3/8"	Brass	3/16"	1	3/32"	1	1,000 psi @ 72° F	5272K606	0000
1/2"	Brass	19/64"	1	5/32"	1	800 psi @ 72° F	5272K607	0000

Front and Back Sleeves with Dispensers

Save time installing sleeves—these sets come oriented in the correct direction and order on a dispenser. To install them, slide off a set and place it on your tubing. Each set includes a front and back sleeve. The sleeves are also known as ferrules.

		Front Sleeve		Back Sleeve
For Tube OD	Sleeve Material	Lg.	No. Included	Lg.	No. Included	Max. Pressure		Each
1/8"	Brass	3/16"	10	7/64"	10	2,800 psi @ 72° F	5272K471	000000
1/4"	Brass	3/16"	10	7/64"	10	1,300 psi @ 72° F	5272K473	00000
3/8"	Brass	3/16"	10	7/64"	10	1,100 psi @ 72° F	5272K475	00000
1/2"	Brass	19/64"	10	9/64"	10	1,200 psi @ 72° F	5272K476	00000

Sleeve and Nut Sets with Dispensers

Save time installing sleeves and nuts—these sets come oriented in the correct direction and order on a dispenser. To install them, slide off a set and place it on your tubing. Each set includes a front sleeve, a back sleeve, and a nut. The sleeves are also known as ferrules.

		Front Sleeve		Back Sleeve		Nut
For Tube OD	Material	Lg.	No. Included	Lg.	No. Included	Lg.	No. Included	Max. Pressure		Each
1/8"	Brass	3/16"	5	7/64"	5	15/32"	5	2,800 psi @ 72° F	7544N11	000000
1/4"	Brass	3/16"	5	7/64"	5	1/2"	5	1,300 psi @ 72° F	7544N13	00000
3/8"	Brass	3/16"	5	7/64"	5	9/16"	5	1,100 psi @ 72° F	7544N15	00000
1/2"	Brass	3/16"	5	7/64"	5	11/16"	5	1,200 psi @ 72° F	7544N16	00000

Tube Supports

Barbed

Smooth

For Tube		Tube Support
OD	ID	Style	Material	Max. Pressure		Each
1/4"	1/8"	Smooth	Brass	1,300 psi @ 72° F	5182K14	00000
1/4"	0.17"	Smooth	Brass	1,300 psi @ 72° F	7888N29	0000
1/4"	0.188"	Smooth	Brass	1,300 psi @ 72° F	5182K12	0000
5/16"	1/8"	Barbed	Brass	1,300 psi @ 72° F	7888N12	0000
5/16"	1/4"	Barbed	Brass	1,300 psi @ 72° F	7888N14	0000
3/8"	3/16"	Barbed	Brass	1,100 psi @ 72° F	7888N15	0000
3/8"	1/4"	Barbed	Brass	1,100 psi @ 72° F	7888N16	0000
1/2"	1/4"	Barbed	Brass	1,200 psi @ 72° F	7888N17	0000
1/2"	3/8"	Smooth	Brass	800 psi @ 72° F	5182K11	0000

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)