Bulkheads for Diesel Fuel

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Tube OD

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Acetic Acid (White Vinegar) (10% Concentration)

Hydrochloric Acid (25% Concentration)

Nitric Acid (10% Concentration)

Phosphoric Acid (70% Concentration)

Phosphoric Acid (85% Concentration)

Salt Water

Silane

Sodium Carbonate (Soda Ash)

Sodium Hydroxide (Caustic Soda) (50% Concentration)

Sodium Hypochlorite (Bleach)

Steam

Sulfur Hexafluoride

Sulfuric Acid

Sulfuric Acid (75% Concentration)

Tungsten Hexafluoride

Mounting Location

Gender

Compatible With

System of Measurement

Nut Material

Maximum Pressure @ Temperature

Maximum Temperature

Hole Diameter

Dash Size

Length

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

REACH

RoHS

Compliant with Exemptions

Specifications Met

ASME B31.3

ASTM A108

For Tube Wall Thickness

89 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.

For Use With: Air, Cutting Oil, Diesel Fuel, Fuel Oil, Gasoline, Hydraulic Fluid, Mineral Oil
Tubing: Use with seamless steel
Specifications Met: See table

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 zinc-plated steel for fair corrosion resistance. They are compatible with Swagelok®, Let-Lok, and A-Lok fittings.

Through-Wall Straight Adapters, Tube × Female Threaded Pipe

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
OD, mm	Wall Thick., mm	Pipe Size	Material	Max. Pressure	Temp. Range, °F	For Hole Dia., mm	For Max. Wall Thick., mm	Specifications Met		Each
NPT Threads
6	0.8	1/8	Zinc-Plated Steel	4,400 psi @ 72° F	-20° to 800°	11.5	10.2	ASME B31.3	00000000	00000
6	0.8	1/4	Zinc-Plated Steel	4,400 psi @ 72° F	-20° to 800°	11.5	10.2	ASME B31.3	00000000	0000

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
OD	Wall Thick.	Material	Max. Pressure	Temp. Range, °F	For Hole Dia.	For Max. Wall Thick.	Specifications Met		Each
1/8"	0.035"	Zinc-Plated Steel	6,800 psi @ 72° F	-20° to 395°	5/16"	1/2"	ASTM A108	00000000	000000
1/4"	0.035"	Zinc-Plated Steel	4,900 psi @ 72° F	-20° to 395°	7/16"	13/32"	ASTM A108	00000000	00000
3/8"	0.035"	Zinc-Plated Steel	3,100 psi @ 72° F	-20° to 395°	9/16"	7/16"	ASTM A108	00000000	00000
1/2"	0.035"	Zinc-Plated Steel	2,300 psi @ 72° F	-20° to 395°	3/4"	1/2"	ASTM A108	00000000	00000

Nuts

For Tube
OD	Wall Thick.	Nut Material	Max. Pressure	Temp. Range, °F	Specifications Met		Each
1/8"	0.035"	Zinc-Plated Steel	6,800 psi @ 72° F	-20° to 395°	ASTM A108	00000000	00000
1/4"	0.035"	Zinc-Plated Steel	4,900 psi @ 72° F	-20° to 395°	ASTM A108	00000000	0000
3/8"	0.035"	Zinc-Plated Steel	3,100 psi @ 72° F	-20° to 395°	ASTM A108	00000000	0000
1/2"	0.035"	Zinc-Plated Steel	2,300 psi @ 72° F	-20° to 395°	ASTM A108	00000000	0000
6mm	0.8mm	Zinc-Plated Steel	4,400 psi @ 72° F	-20° to 800°	ASME B31.3	00000000	0000

Front and Back Sleeves

For Tube
OD	Wall Thick.	Front Sleeve Material	Back Sleeve Material	Max. Pressure	Temp. Range, °F	Specifications Met		Each
1/8"	0.035"	Zinc-Plated Steel	316 Stainless Steel	6,800 psi @ 72° F	-20° to 800°	ASME B31.3	00000000	00000
1/4"	0.035"	Zinc-Plated Steel	316 Stainless Steel	4,850 psi @ 72° F	-20° to 800°	ASME B31.3	00000000	0000
3/8"	0.035"	Zinc-Plated Steel	316 Stainless Steel	3,100 psi @ 72° F	-20° to 800°	ASME B31.3	00000000	00000
1/2"	0.035"	Zinc-Plated Steel	316 Stainless Steel	2,300 psi @ 72° F	-20° to 800°	ASME B31.3	00000000	00000
6mm	0.8mm	Zinc-Plated Steel	316 Stainless Steel	4,400 psi @ 72° F	-20° to 800°	ASME B31.3	00000000	0000

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.

Through-Wall Straight Adapters, Tube × Male Threaded Pipe

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
OD	Wall Thick.	Pipe Size	Material	Max. Pressure	For Hole Dia.	For Max. Wall Thick.		Each
NPT Threads
1/4"	0.028"	1/8	Brass	1,300 psi @ 72° F	7/16"	13/32"	00000000	000000
1/4"	0.028"	1/4	Brass	1,300 psi @ 72° F	7/16"	13/32"	00000000	00000
3/8"	0.035"	1/4	Brass	1,100 psi @ 72° F	9/16"	7/16"	00000000	00000
3/8"	0.035"	3/8	Brass	1,100 psi @ 72° F	9/16"	7/16"	00000000	00000
1/2"	0.049"	1/2	Brass	1,200 psi @ 72° F	3/4"	1/2"	00000000	00000

Through-Wall Straight Adapters, Tube × Female Threaded Pipe

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
OD	Wall Thick.	Pipe Size	Material	Max. Pressure	For Hole Dia.	For Max. Wall Thick.		Each
NPT Threads
1/4"	0.028"	1/8	Brass	1,300 psi @ 72° F	7/16"	13/32"	00000000	000000
1/4"	0.028"	1/4	Brass	1,300 psi @ 72° F	7/16"	13/32"	00000000	00000
3/8"	0.035"	1/4	Brass	1,100 psi @ 72° F	9/16"	7/16"	00000000	00000
1/2"	0.049"	1/2	Brass	1,200 psi @ 72° F	3/4"	1/2"	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
OD	Wall Thick.	Material	Max. Pressure	For Hole Dia.	For Max. Wall Thick.		Each
1/16"	0.028"	Brass	5,400 psi @ 72° F	3/16"	1/8"	00000000	000000
1/8"	0.035"	Brass	2,900 psi @ 72° F	5/16"	1/2"	00000000	00000
3/16"	0.035"	Brass	2,300 psi @ 72° F	3/8"	1/2"	00000000	00000
1/4"	0.035"	Brass	1,600 psi @ 72° F	7/16"	17/32"	00000000	00000
5/16"	0.035"	Brass	1,300 psi @ 72° F	1/2"	7/16"	00000000	00000
3/8"	0.035"	Brass	1,000 psi @ 72° F	9/16"	9/16"	00000000	00000
1/2"	0.035"	Brass	800 psi @ 72° F	3/4"	19/32"	00000000	00000
5/8"	0.049"	Brass	900 psi @ 72° F	7/8"	19/32"	00000000	00000
3/4"	0.049"	Brass	700 psi @ 72° F	1"	21/32"	00000000	00000
1"	0.065"	Brass	700 psi @ 72° F	1 5/16"	3/4"	00000000	00000

Nuts

For Tube OD	Nut Material	Max. Pressure		Each
1/16"	Brass	5,400 psi @ 72° F	00000000	00000
1/8"	Brass	2,900 psi @ 72° F	00000000	0000
3/16"	Brass	2,300 psi @ 72° F	00000000	0000
1/4"	Brass	1,600 psi @ 72° F	00000000	0000
5/16"	Brass	1,300 psi @ 72° F	00000000	0000
3/8"	Brass	1,000 psi @ 72° F	00000000	0000
1/2"	Brass	800 psi @ 72° F	00000000	0000
5/8"	Brass	900 psi @ 72° F	00000000	0000
3/4"	Brass	700 psi @ 72° F	00000000	0000
1"	Brass	800 psi @ 72° F	00000000	00000

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	00000000	00000
1/8"	Brass	3/16"	1	3/32"	1	2,900 psi @ 72° F	00000000	0000
3/16"	Brass	3/16"	1	3/32"	1	2,300 psi @ 72° F	00000000	0000
1/4"	Brass	3/16"	1	3/32"	1	1,600 psi @ 72° F	00000000	0000
5/16"	Brass	3/16"	1	3/32"	1	1,300 psi @ 72° F	00000000	0000
3/8"	Brass	3/16"	1	3/32"	1	1,000 psi @ 72° F	00000000	0000
1/2"	Brass	19/64"	1	5/32"	1	800 psi @ 72° F	00000000	0000
5/8"	Brass	19/64"	1	5/32"	1	900 psi @ 72° F	00000000	00000
3/4"	Brass	19/64"	1	5/32"	1	700 psi @ 72° F	00000000	0000
1"	Brass	3/8"	1	13/16"	1	800 psi @ 72° F	00000000	00000

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	00000000	000000
3/16"	Brass	3/16"	10	7/64"	10	1,800 psi @ 72° F	00000000	00000
1/4"	Brass	3/16"	10	7/64"	10	1,300 psi @ 72° F	00000000	00000
5/16"	Brass	3/16"	10	7/64"	10	1,300 psi @ 72° F	00000000	00000
3/8"	Brass	3/16"	10	7/64"	10	1,100 psi @ 72° F	00000000	00000
1/2"	Brass	19/64"	10	9/64"	10	1,200 psi @ 72° F	00000000	00000
5/8"	Brass	3/16"	10	7/64"	10	1,250 psi @ 72° F	00000000	00000
3/4"	Brass	9/32"	10	5/32"	10	1,000 psi @ 72° F	00000000	00000
1"	Brass	9/32"	10	5/32"	10	1,000 psi @ 72° F	00000000	000000

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	0000000	000000
3/16"	Brass	3/16"	5	7/64"	5	15/32"	5	1,800 psi @ 72° F	0000000	00000
1/4"	Brass	3/16"	5	7/64"	5	1/2"	5	1,300 psi @ 72° F	0000000	00000
5/16"	Brass	3/16"	5	7/64"	5	17/32"	5	1,300 psi @ 72° F	0000000	00000
3/8"	Brass	3/16"	5	7/64"	5	9/16"	5	1,100 psi @ 72° F	0000000	00000
1/2"	Brass	3/16"	5	7/64"	5	11/16"	5	1,200 psi @ 72° F	0000000	00000
5/8"	Brass	9/32"	5	5/32"	5	11/16"	5	1,250 psi @ 72° F	0000000	00000
3/4"	Brass	9/32"	5	5/32"	5	11/16"	5	1,000 psi @ 72° F	0000000	00000
1"	Brass	9/32"	5	5/32"	5	13/16"	5	1,000 psi @ 72° F	000000	000000

Tube Supports

Barbed

Smooth

For Tube		Tube Support
OD	ID	Style	Material	Max. Pressure		Each
3/16"	1/8"	Barbed	Brass	1,800 psi @ 72° F	0000000	00000
1/4"	1/8"	Smooth	Brass	1,300 psi @ 72° F	0000000	0000
1/4"	0.17"	Smooth	Brass	1,300 psi @ 72° F	0000000	0000
1/4"	0.188"	Smooth	Brass	1,300 psi @ 72° F	0000000	0000
5/16"	1/8"	Barbed	Brass	1,300 psi @ 72° F	0000000	0000
5/16"	3/16"	Barbed	Brass	1,300 psi @ 72° F	0000000	0000
5/16"	1/4"	Barbed	Brass	1,300 psi @ 72° F	0000000	0000
3/8"	3/16"	Barbed	Brass	1,100 psi @ 72° F	0000000	0000
3/8"	1/4"	Barbed	Brass	1,100 psi @ 72° F	0000000	0000
1/2"	1/4"	Barbed	Brass	1,200 psi @ 72° F	0000000	0000
1/2"	3/8"	Smooth	Brass	800 psi @ 72° F	0000000	0000
5/8"	3/8"	Barbed	Brass	1,250 psi @ 72° F	0000000	0000
5/8"	1/2"	Barbed	Brass	1,250 psi @ 72° F	0000000	0000
3/4"	1/2"	Barbed	Brass	1,000 psi @ 72° F	0000000	0000
3/4"	5/8"	Barbed	Brass	1,000 psi @ 72° F	0000000	0000
1"	3/4"	Barbed	Brass	1,000 psi @ 72° F	0000000	00000

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How to Identify and Measure Fittings

Yor-Lok Fittings for Steel Tubing

Yor-Lok Fittings for Copper Tubing