Bulkheads for Lubricated Air

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91 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, 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.

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

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.

				Release Ring
For Tube OD	Pipe Size	Material	Max. Pressure		Each
NPT Threads
1/4"	1/4	Nickel-Plated Brass	230 psi @ 72° F	000000000	000000

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.

					Release Ring
For Tube OD	Material	Max. Pressure	For Hole Dia.	For Max. Wall Thick.		Each
1/8"	Nickel-Plated Brass	230 psi @ 72° F	7/16"	13/32"	000000000	000000
5/32"	Nickel-Plated Brass	230 psi @ 72° F	7/16"	13/32"	000000000	00000
3/16"	Nickel-Plated Brass	230 psi @ 72° F	1/2"	13/32"	000000000	00000
1/4"	Nickel-Plated Brass	230 psi @ 72° F	9/16"	7/16"	000000000	0000
5/16"	Nickel-Plated Brass	230 psi @ 72° F	11/16"	7/16"	000000000	00000
3/8"	Nickel-Plated Brass	230 psi @ 72° F	3/4"	1/2"	000000000	00000
1/2"	Nickel-Plated Brass	230 psi @ 72° F	7/8"	9/16"	000000000	00000
4mm	Nickel-Plated Brass	230 psi @ 72° F	10.5mm	10.5mm	000000000	00000
6mm	Nickel-Plated Brass	230 psi @ 72° F	14.5mm	10.5mm	000000000	00000
8mm	Nickel-Plated Brass	230 psi @ 72° F	16.5mm	11.5mm	000000000	00000
10mm	Nickel-Plated Brass	230 psi @ 72° F	20.5mm	13mm	000000000	00000
12mm	Nickel-Plated Brass	230 psi @ 72° F	24.5mm	14.5mm	000000000	00000

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

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

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.

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

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.

		Release Ring
For Tube OD	Pipe Size	Material	Color	Max. Pressure	For Hole Dia.	For Max. Wall Thick.	Choose a Material		Each
NPT Threads
1/8"	1/4	Plastic	Orange	140 psi @ 72° F	17/32"	__	Brass, Nickel-Plated Brass	00000000	00000
5/32"	1/4	Plastic	Orange	140 psi @ 72° F	17/32"	__	Brass, Nickel-Plated Brass	00000000	0000
3/16"	1/8	Plastic	Orange	140 psi @ 72° F	19/32"	__	Brass, Nickel-Plated Brass	00000000	0000
1/4"	1/4	Plastic	Orange	140 psi @ 72° F	19/32"	__	Brass, Nickel-Plated Brass	00000000	0000
5/16"	3/8	Plastic	Orange	140 psi @ 72° F	25/32"	__	Brass, Nickel-Plated Brass	00000000	00000
3/8"	3/8	Plastic	Orange	140 psi @ 72° F	29/32"	__	Brass, Nickel-Plated Brass	00000000	00000
1/2"	3/8	Plastic	Orange	140 psi @ 72° F	1 1/32"	__	Brass, Nickel-Plated Brass	00000000	00000
1/2"	1/2	Plastic	Orange	140 psi @ 72° F	1 1/32"	__	Brass, Nickel-Plated Brass	00000000	00000
BSPT Threads
4mm	1/8	Plastic	Gray	140 psi @ 72° F	13mm	7mm	Brass, Nickel-Plated Brass	00000000	0000
4mm	1/4	Plastic	Gray	140 psi @ 72° F	13mm	7mm	Brass, Nickel-Plated Brass	00000000	0000
6mm	1/8	Plastic	Gray	140 psi @ 72° F	15mm	7mm	Brass, Nickel-Plated Brass	00000000	0000
6mm	1/4	Plastic	Gray	140 psi @ 72° F	15mm	7mm	Brass, Nickel-Plated Brass	00000000	0000
6mm	3/8	Plastic	Gray	140 psi @ 72° F	15mm	7mm	Brass, Nickel-Plated Brass	00000000	0000
8mm	1/8	Plastic	Gray	140 psi @ 72° F	17mm	7mm	Brass, Nickel-Plated Brass	00000000	00000
8mm	1/4	Plastic	Gray	140 psi @ 72° F	17mm	7mm	Brass, Nickel-Plated Brass	00000000	00000
8mm	3/8	Plastic	Gray	140 psi @ 72° F	17mm	7mm	Brass, Nickel-Plated Brass	00000000	00000
10mm	1/4	Plastic	Gray	140 psi @ 72° F	21mm	7mm	Brass, Nickel-Plated Brass	00000000	0000
10mm	3/8	Plastic	Gray	140 psi @ 72° F	21mm	7mm	Brass, Nickel-Plated Brass	00000000	00000
12mm	3/8	Plastic	Gray	140 psi @ 72° F	23mm	7mm	Brass, Nickel-Plated Brass	00000000	00000
12mm	1/2	Plastic	Gray	140 psi @ 72° F	23mm	7mm	Brass, Nickel-Plated Brass	00000000	00000
16mm	3/8	Plastic	Gray	140 psi @ 72° F	29mm	7mm	Brass, Nickel-Plated Brass	00000000	00000
16mm	1/2	Plastic	Gray	140 psi @ 72° F	29mm	7mm	Brass, Nickel-Plated Brass	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.

	Release Ring
For Tube OD	Material	Color	Max. Pressure	For Hole Dia.	For Max. Wall Thick.	Choose a Material		Each
1/8"	Plastic	Orange	140 psi @ 72° F	17/32"	7/16"	Brass, Nickel-Plated Brass	00000000	00000
5/32"	Plastic	Orange	140 psi @ 72° F	17/32"	7/16"	Brass, Nickel-Plated Brass	00000000	0000
3/16"	Plastic	Orange	140 psi @ 72° F	19/32"	7/16"	Brass, Nickel-Plated Brass	00000000	0000
1/4"	Plastic	Orange	140 psi @ 72° F	19/32"	7/16"	Brass, Nickel-Plated Brass	00000000	0000
5/16"	Plastic	Orange	140 psi @ 72° F	25/32"	7/16"	Brass, Nickel-Plated Brass	00000000	0000
3/8"	Plastic	Orange	140 psi @ 72° F	29/32"	7/16"	Brass, Nickel-Plated Brass	00000000	00000
1/2"	Plastic	Orange	140 psi @ 72° F	1 1/32"	7/16"	Brass, Nickel-Plated Brass	00000000	00000
4mm	Plastic	Gray	140 psi @ 72° F	13mm	11mm	Brass, Nickel-Plated Brass	000000000	0000
6mm	Plastic	Gray	140 psi @ 72° F	15mm	11mm	Brass, Nickel-Plated Brass	000000000	0000
8mm	Plastic	Gray	140 psi @ 72° F	17mm	11mm	Brass, Nickel-Plated Brass	000000000	0000
10mm	Plastic	Gray	140 psi @ 72° F	21mm	11mm	Brass, Nickel-Plated Brass	000000000	00000
12mm	Plastic	Gray	140 psi @ 72° F	23mm	11mm	Brass, Nickel-Plated Brass	000000000	00000
16mm	Plastic	Gray	140 psi @ 72° F	29mm	11mm	Brass, Nickel-Plated Brass	000000000	00000

Aluminum Low-Pressure Barbed Tube Fittings for Air and Water

For Use With: Air, Lubricated Air, Water
Temperature Range: -40° to 230° F
Tubing: Use with hard (Durometer 75A-60D) EVA plastic, polyethylene plastic, polyurethane rubber or PVDF plastic

Made of aluminum, these fittings are lighter in weight than other metal barbed tube fittings and have good corrosion resistance. The barb grips onto tubing, providing a secure hold with no clamp required.

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

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 ID	Material	Max. Pressure	For Hole Dia.	For Max. Wall Thick.		Each
1/16"	Aluminum	125 psi @ 72° F	3/16"	1/4"	00000000	000000
1/8"	Aluminum	125 psi @ 72° F	1/4"	5/16"	00000000	00000
0.17"	Aluminum	125 psi @ 72° F	5/16"	13/32"	00000000	00000
1/4"	Aluminum	125 psi @ 72° F	3/8"	13/32"	00000000	00000
3/8"	Aluminum	125 psi @ 72° F	1/2"	13/32"	00000000	00000
1/2"	Aluminum	125 psi @ 72° F	3/4"	53/64"	00000000	00000

Plastic Compression Tube Fittings for Air

For Use With: Air, Lubricated Air
Temperature Range: -30° to 210° F
Tubing: Use with firm or hard nylon plastic, polyethylene plastic or polypropylene plastic

Lighter in weight than their metal counterparts, these compression fittings are polypropylene. They have excellent impact and abrasion resistance. Fittings include a nut with a built-in sleeve (ferrule), so there’s no need to remove the nut for assembly. The sleeve compresses the tubing as you tighten the nut, creating a strong seal. Fittings are also known as flareless fittings.

Tube supports (sold separately) are recommended if you want to use the fittings with soft nylon, polypropylene, and polyethylene tubing to prevent the tube from collapsing.

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

Through-Wall Straight Connectors, Tube

Through-wall connectors mount through a panel or wall to create an inlet or outlet. They're also called bulkhead couplings and panel-mount couplings.

For Tube OD	Material	Color	Max. Pressure	For Hole Dia.	For Max. Wall Thick.	Pkg. Qty.		Pkg.
1/4"	Polypropylene Plastic	White	220 psi @ 72° F	15/32"	1/4"	5	00000000	00000
5/16"	Polypropylene Plastic	White	220 psi @ 72° F	17/32"	5/16"	5	00000000	00000
3/8"	Polypropylene Plastic	White	220 psi @ 72° F	21/32"	5/16"	2	00000000	0000
1/2"	Polypropylene Plastic	White	220 psi @ 72° F	25/32"	1/4"	2	00000000	0000
3/4"	Polypropylene Plastic	White	220 psi @ 72° F	1 3/32"	7/16"	1	00000000	0000
6mm	Polypropylene Plastic	White	220 psi @ 72° F	7/16"	17/64"	5	00000000	00000

Nuts with Built-In Sleeve

	Nut		Sleeve
For Tube OD	Material	Color	Material	Color	Max. Pressure	Pkg. Qty.		Pkg.
1/4"	Polypropylene Plastic	White	Polypropylene Plastic	White	220 psi @ 72° F	10	00000000	00000
5/16"	Polypropylene Plastic	White	Polypropylene Plastic	White	220 psi @ 72° F	10	00000000	0000
3/8"	Polypropylene Plastic	White	Polypropylene Plastic	White	220 psi @ 72° F	10	00000000	0000
1/2"	Polypropylene Plastic	White	Polypropylene Plastic	White	220 psi @ 72° F	10	00000000	0000
3/4"	Polypropylene Plastic	White	Polypropylene Plastic	White	220 psi @ 72° F	5	00000000	0000

Tube Supports

For Tube		Tube Support
OD	ID	Material	Color	Max. Pressure	Pkg. Qty.		Pkg.
1/4"	3/16"	Polypropylene Plastic	White	220 psi @ 72° F	10	00000000	00000
5/16"	3/16"	Polypropylene Plastic	White	220 psi @ 72° F	10	00000000	0000
3/8"	1/4"	Polypropylene Plastic	White	220 psi @ 72° F	10	00000000	0000
1/2"	3/8"	Polypropylene Plastic	White	220 psi @ 72° F	10	00000000	0000

Brass Compression Tube Fittings for Air and Water

For Use With: Air, Lubricated Air, Water
Temperature Range: See table
Tubing: Use with firm or hard (Durometer 1A-95A or Rockwell 15T 1-15T 60) nylon plastic, polyethylene plastic, polypropylene plastic or polyurethane rubber
Specifications Met: SAE J512, except metric sizes

A single sleeve (ferrule) compresses the 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.

Tube supports (sold separately) are recommended if you want to use the fittings with soft polypropylene and polyethylene tubing to prevent the tube from collapsing.

Install plugs with a nut (sold separately) on the end of fittings to block the flow of air or water.

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

Through-Wall Straight Connectors, Tube

For Tube, mm
OD	Wall Thick.	Material	Max. Pressure	Temp. Range, °F	For Hole Dia., mm	For Max. Wall Thick., mm		Each
4	1	Brass	2100 psi @ 72° F	-75° to 550°	9	12	00000000	00000
6	1	Brass	2100 psi @ 72° F	-75° to 550°	11	12.5	0000000	0000
8	1	Brass	1900 psi @ 72° F	-75° to 550°	13.5	12.5	00000000	0000
10	1	Brass	1300 psi @ 72° F	-75° to 550°	17.5	13	00000000	0000
12	1	Brass	1000 psi @ 72° F	-75° to 550°	20	17	00000000	00000

Tube Supports

For Use With: See table
Temperature Range: See table
Tubing:
Tube supports for use with air and lubricated air: Use with firm or soft (Durometer 1A-95A) polyethylene plastic or polyurethane rubber
Tube supports for use with air, lubricated air, and water: Use with hard or firm (Rockwell 15T 1-15T 60) nylon plastic, polyethylene plastic, polypropylene plastic, or polyurethane rubber
Specifications Met: SAE J512, except metric sizes

For Tube
OD	ID	For Use With	Tube Support Material	Max Pressure	Temp. Range, °F	Pkg. Qty.		Pkg.
4mm	2mm	Air, Lubricated Air	Brass	3300 psi @ 72° F	-65° to 250°	25	000000000	000000
								Each
4mm	2.7mm	Air, Lubricated Air, Water	Brass	2100 psi @ 72° F	-75° to 550°	__	00000000	000
6mm	4mm	Air, Lubricated Air, Water	Brass	2100 psi @ 72° F	-75° to 550°	__	0000000	000
8mm	6mm	Air, Lubricated Air, Water	Brass	1900 psi @ 72° F	-75° to 550°	__	00000000	000
10mm	8mm	Air, Lubricated Air, Water	Brass	1300 psi @ 72° F	-75° to 550°	__	00000000	000
12mm	9mm	Air, Lubricated Air, Water	Brass	1000 psi @ 72° F	-75° to 550°	__	00000000	000
12mm	10mm	Air, Lubricated Air, Water	Brass	1000 psi @ 72° F	-75° to 550°	__	00000000	000

Nuts

For Use With: Air, Lubricated Air, Water
Temperature Range: See table
Tubing: Use with firm or hard (Durometer 1A-95A or Rockwell 15T 1-15T 60) nylon plastic, polyethylene plastic, polypropylene plastic or polyurethane rubber
Specifications Met: SAE J512, except metric sizes

For Tube
OD	Wall Thick.	Nut Material	Max. Pressure	Temp. Range, °F		Each
4mm	1mm	Brass	2100 psi @ 72° F	-75° to 550°	00000000	00000
6mm	1mm	Brass	2100 psi @ 72° F	-75° to 550°	0000000	000
8mm	1mm	Brass	1900 psi @ 72° F	-75° to 550°	00000000	000
10mm	1mm	Brass	1300 psi @ 72° F	-75° to 550°	00000000	0000
12mm	1mm	Brass	1000 psi @ 72° F	-75° to 550°	00000000	0000

Sleeves

For Use With: Air, Lubricated Air, Water
Temperature Range: See table
Tubing: Use with firm or hard (Durometer 1A-95A or Rockwell 15T 1-15T 60) nylon plastic, polyethylene plastic, polypropylene plastic or polyurethane rubber
Specifications Met: SAE J512, except metric sizes

For Tube		Sleeve
OD	Wall Thick.	Material	Max. Pressure	Temp. Range, °F		Each
4mm	1mm	Brass	2100 psi @ 72° F	-75° to 550°	00000000	00000
6mm	1mm	Brass	2100 psi @ 72° F	-75° to 550°	0000000	000
8mm	1mm	Brass	1900 psi @ 72° F	-75° to 550°	00000000	000
10mm	1mm	Brass	1300 psi @ 72° F	-75° to 550°	00000000	000
12mm	1mm	Brass	1000 psi @ 72° F	-75° to 550°	00000000	000

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How to Identify and Measure Fittings

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

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

Aluminum Low-Pressure Barbed Tube Fittings for Air and Water

Plastic Compression Tube Fittings for Air

Brass Compression Tube Fittings for Air and Water