How to Identify and Measure Fittings
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Open-Flow Quick-Disconnect Hose Couplings for Air and Water
Couplings allow for maximum flow because there’s no shut-off valve in the plug or the socket. A complete coupling consists of a plug and a socket (both sold separately) that connect and disconnect quickly. Use them if you need frequent access to a line. All Open-Flow plugs are compatible with any of the Open-Flow sockets of the same coupling size, regardless of the pipe size. They are compatible with Hansen ST, Parker ST, and Perfecting E couplings.
Plugs are also known as nipples.
Zinc-plated steel plugs are stronger and more durable than other metal plugs. They have fair corrosion resistance, so they should be used primarily in dry environments. Brass plugs and sockets are softer than other metal plugs and sockets, so they’re easier to thread together. They have good corrosion resistance. 303 stainless steel plugs and sockets have very good corrosion resistance. They’re the best choice for high-humidity environments.
Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size.
Warning: There is no valve in these couplings. Stop the air and water flow before you disconnect the line.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: See table
- Temperature Range: -40° to 250° F
- Compatible With: Hansen ST Couplings, Parker ST Couplings, Perfecting E Couplings
Plug Tip | ||||||
|---|---|---|---|---|---|---|
| Coupling Size | Lg. | Dia. | Pipe Size | Max. Pressure | Each | |
303 Stainless Steel | ||||||
| 1/4 | 1/8" | 3/8" | 1/4 | 7,500 psi @ 72° F | 00000000 | 000000 |
- Maximum Pressure: See table
- Temperature Range: -40° to 250° F
- Compatible With: Hansen ST Couplings, Parker ST Couplings, Perfecting E Couplings
- Maximum Pressure: See table
- Temperature Range: -40° to 250° F
- Compatible With: Hansen ST Couplings, Parker ST Couplings, Perfecting E Couplings
Plug Tip | ||||||
|---|---|---|---|---|---|---|
| Coupling Size | Lg. | Dia. | Pipe Size | Max. Pressure | Each | |
303 Stainless Steel | ||||||
| 1/4 | 1/8" | 3/8" | 1/4 | 7,500 psi @ 72° F | 00000000 | 000000 |
Metal Barbed Hose Fittings for Air and Water
Slide the barbed end into rubber hose and secure with the appropriate clamp or crimp-on hose ferrule.
Zinc-plated steel fittings are stronger and more durable than other metal fittings. They have fair corrosion resistance, so they should be used primarily in dry environments.
Brass fittings are softer than other metal fittings, so they’re easier to thread together. Plain brass fittings have good corrosion resistance. Fittings that swivel until tightened rotate 360° for easy installation. Fittings with a threaded end are also known as hose nipples.
Metric, UN/UNF (SAE Straight), and BSPP male threads with gasket protect against leaks. UN/UNF (SAE Straight) threads are also known as O-ring boss threads.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: See table
- Maximum Vacuum: See table
- Temperature Range: See table
- Attachment Type: See table
- Specifications Met: See table
| For Hose ID | Pipe Size | Max. Pressure | Max. Vacuum | Temperature Range, °F | Attachment Type | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1/8" | 3/8 | 150 psi @ 72° F | 27 in. of Hg @ 72° F | -40° to 160° | Worm-Drive Clamp | 1 | 00000000 | 000000 |
- Maximum Pressure: 120 psi @ 72° F, except For 1/8" to 3/16" Hose IDs: 250 psi @ 72° F
- Maximum Vacuum: For 1/8" to 3/16" Hose IDs: 27 in. of Hg @ 72° F
- Temperature Range: -40° to 160° F
- Attachment Type: See table
- Specifications Met: SAE J476
| For Hose ID | Pipe Size | Attachment Type | Pkg. Qty. | Pkg. | |
Brass | |||||
|---|---|---|---|---|---|
| 1/8" | 1/8 | Worm-Drive Clamp | 1 | 00000000 | 000000 |
UN/UNF (SAE Straight)
Male Threads with Gasket
- Maximum Pressure: 250 psi @ 72° F
- Maximum Vacuum: 27 in. of Hg @ 72° F
- Temperature Range: -40° to 160° F
- Attachment Type: Use Worm-Drive Clamps or Crimp-On Hose Ferrules
- Specifications Met: See table
| For Hose ID | Thread Size | Gasket Material | Specifications Met | Pkg. Qty. | Pkg. | |
Brass | ||||||
|---|---|---|---|---|---|---|
| 1/4" | 3/8"-24 | Buna-N Rubber | SAE J1926/1 | 1 | 0000000 | 000000 |
Tight-Seal Barbed Hose Fittings for Air and Water
Also known as ball-seat hose nipples, these fittings consist of a barbed shaft with a rounded end that sits inside a female threaded nut. When mated with a male threaded fitting, the rounded end presses tightly against the inside of the male threads for a better seal than a single-piece fitting. Once assembled, insert the barbed end into rubber hose and secure with a clamp or a crimp-on hose ferrule. The nut swivels until tightened for easy installation. Fittings are brass for good corrosion resistance.
NPSM (National Pipe Straight Mechanical) female threads are compatible with male NPT and NPTF (Dryseal) threads.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: 250 psi @72° F
- Temperature Range: -40° to 160° F
- Attachment Type: Use Crimp-On Hose Ferrules, except For 1/2" to 3/4" Hose IDs: Use Band-and-Buckle Clamps
- Specifications Met: See table
| For Hose ID | Pipe Size | Thread Type | Specifications Met | Pkg. Qty. | Pkg. | |
Brass | ||||||
|---|---|---|---|---|---|---|
| 3/16" | 1/4 | NPSM | ASME B1.20.1, SAE J476 | 5 | 00000000 | 000000 |
Nuts for High-Pressure Nipples for Compressed Gas
Slide a high-pressure hose nipple for compressed gas into one of these nuts to connect a pipe to the inlet of a pressure regulator. They are also known as CGA (Compressed Gas Association) nuts and inlet nuts.
Brass nuts have good corrosion resistance and are softer than 316 stainless steel nuts, so they're easier to thread together. Chrome-plated brass nuts have comparable corrosion and wear resistance to aluminum-plated brass nuts, and have a bright, shiny appearance.
Note: Nuts have a CGA, BS, or DIN number that corresponds to a specific type of gas. Choose a nut with the same number as your tank and other system components.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: See table
- Maximum Temperature: 120° F, except DIN 477 No. 9: 250° F
| Number | Thread Size | Thread Type | Thread Direction | Max. Pressure | For Use With | Each | |
Chrome-Plated Brass | |||||||
|---|---|---|---|---|---|---|---|
| CGA 346 | 0.830"-14 | NGO | Right Hand | 3,000 psi @ 72° F | Air | 00000000 | 000000 |
Push-to-Connect Tube Fittings for Air
- Temperature Range: 0° to 170° F
- Tubing: Use with firm (Durometer 95A-45D) polyethylene plastic or polyurethane rubber
- Specifications Met: ISO 14743, except 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.
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.
For technical drawings and 3-D models, click on a part number.
Plugs insert into the push-to-connect end of a fitting.
| Tube Stem OD | Material | Color | Max. Pressure | Each | |
Nylon Plastic | |||||
|---|---|---|---|---|---|
| 5/16" | Nylon Plastic | Red | 290 psi @ 72° F | 00000000 | 00000 |
Brass Push-to-Connect Tube Fittings for Air
- Temperature Range: 0° to 200° F, except Tube Stem Straight Connectors are 0° to 150° F, and Plugs are 0° to 170° F
- Tubing: See table
These fittings offer good protection against corrosive environments. 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.
NPTF (Dryseal) threads are compatible with NPT threads.
For technical drawings and 3-D models, click on a part number.
Release Ring | For Tube | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| For Tube OD | Pipe Size | Material | Material | Color | Max. Pressure | Material | Hardness Rating | Each | |
NPTF Threads | |||||||||
| 5/16" | 1/4 | Brass | Plastic | Black | 290 psi @ 72° F | Nylon Plastic, Polyethylene Plastic | Hard | 000000000 | 000000 |
Plugs insert into the push-to-connect end of another fitting.
| Tube Stem OD | Material | Max. Pressure | Specifications Met | Each | |
| 5/16" | Nylon Plastic | 290 psi @ 72° F | ISO 14743 | 00000000 | 00000 |
Nickel-Plated Brass Push-to-Connect Tube Fittings for Air
- For Use With: Air, Lubricated Air
- Temperature Range: 0° to 140° F, except plugs and straight connectors are 32° 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.
Fittings with release sleeve are easier to disconnect than fittings with a release ring because they are seamless and won't collect dirt and debris.
Fittings with thread sealant offer extra protection against leaks.
For technical drawings and 3-D models, click on a part number.
| For Tube OD | Pipe Size | Material | Release Type | Max. Pressure | Features | Each | |
NPT Threads | |||||||
|---|---|---|---|---|---|---|---|
| 1/4" | 1/2 | Nickel-Plated Brass | Sleeve | 230 psi @ 72° F | Thread Sealant | 00000000 | 000000 |
Fittings with tube stem insert into the push-to-connect end of another fitting in place of a length of tubing.
| Tube Stem OD | For Tube OD | Material | Release Type | Max. Pressure | Each | |
| 1/4" | 6mm | Nickel-Plated Brass | Sleeve | 230 psi @ 72° F | 00000000 | 000000 |
Stainless Steel Push-to-Connect Tube Fittings for Air and Water
- Temperature Range: -10° to 300° F,
except ISO 14743 fittings: 5° to 390° F - Tubing: Use with firm or hard (Durometer 95A-72D) nylon plastic or polyurethane rubber,
except ISO 14743 fittings: Use with firm (Durometer 85A-100A) nylon plastic or polyurethane rubber
Made entirely of stainless steel, these fittings have the best corrosion resistance of all our metal push-to-connect 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 and pull the tubing out of the fitting.
For technical drawings and 3-D models, click on a part number.
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.
ISO 14743 fittings meet an international standard for push-to-connect fittings for plastic tubing.
| For Tube OD | Material | Max. Pressure | For Hole Dia. | For Max. Wall Thick. | Specifications Met | Each | |
| 5/16" | 316 Stainless Steel | 250 psi @ 72° F | 5/8" | 13/32" | ISO 14743 | 00000000 | 000000 |
Low-Profile High-Pressure Quick-Disconnect Tube Couplings for Air
- Temperature Range: -30° to 250° F
- Tubing: Use with firm or soft (Durometer 35A-90A) Buna-N rubber, EVA plastic, gum rubber, latex rubber, neoprene rubber, polyurethane rubber, PVC plastic or silicone rubber, except for fittings with pipe end
With no latch, these couplings have a compact design to fit in small spaces. They connect with a push and disconnect with a pull, so you can easily access your line. Couplings consist of a plug and a socket (sold separately). They have a universal connection, so the plugs will connect to any of the sockets regardless of the pipe or tube size. They are nickel-plated brass for very good corrosion resistance.
Note: For a complete coupling, order a plug and a socket.
For technical drawings and 3-D models, click on a part number.
Sockets with shut-off have a valve to stop the flow when the coupling is separated, so air won’t leak from your line.
Through-wall plugs and sockets are also known as bulkhead and panel-mount plugs and sockets; they mount through your wall or panel to create an inlet or outlet.
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.
For Tube (A) | For Tube (B) | |||||||
|---|---|---|---|---|---|---|---|---|
| OD | Wall Thick. | OD | Wall Thick. | Material | Max. Pressure | Temp. Range, °F | Each | |
| 3/8" | 0.032" | 1/4" | 0.032" | Brass | 200 psi @ 72° F | -65° to 250° | 000000000 | 000000 |
- 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. | |
| 1/4" | 1/8" | Air, Lubricated Air | Brass | 300 psi @ 72° F | -65° to 250° | 10 | 000000000 | 000000 |
| 1/4" | 5/32" | Air, Lubricated Air | Brass | 165 psi @ 75° F | -65° to 250° | 10 | 000000000 | 00000 |
| 3/8" | 1/4" | Air, Lubricated Air | Brass | 165 psi @ 75° F | -65° to 250° | 10 | 000000000 | 00000 |
- 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 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
D.O.T. Brass Compression Tube Fittings for Air
- Temperature Range: -40° to 200° F
- Tubing: Use with hard (Durometer 65D) nylon plastic
- Specifications Met: D.O.T. FMVSS 571
Fittings meet Department of Transportation FMVSS 571 safety standards for air brake lines. They have a single sleeve (ferrule) that 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.
NPTF (Dryseal) threads are compatible with NPT threads.
For technical drawings and 3-D models, click on a part number.
| For Tube OD | Pipe Size | Material | Max. Pressure | Each | |
NPTF Threads | |||||
|---|---|---|---|---|---|
| 3/8" | 1/8 | Brass | 150 psi @ 72° F | 000000000 | 00000 |
| For Tube OD | Nut Material | Max. Pressure | Pkg. Qty. | Pkg. | |
| 3/8" | Brass | 150 psi @ 72° F | 10 | 000000000 | 000000 |
| For Tube OD | Sleeve Material | Max. Pressure | Pkg. Qty. | Pkg. | |
| 3/8" | Brass | 150 psi @ 72° F | 10 | 000000000 | 00000 |
Yor-Lok Fittings for Stainless Steel Tubing
(SAE Straight) Male
Threads with Gasket
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. They are compatible with Swagelok®, Let-Lok, and A-Lok fittings.
316 stainless steel fittings have excellent corrosion resistance.
BSPP and UN/UNF (SAE Straight) male threads have a gasket to protect against leaks. UN/UNF (SAE Straight) threads are also known as O-ring boss threads.
For technical drawings and 3-D models, click on a part number.
(SAE Straight) Male
Threads with Gasket
- For Use With:
Inch:
NPT and BSPT Threads: Air, Cutting Oil, Fuel Oil, Gasoline, Hydraulic Fluid, Mineral Oil, Natural Gas, Steam, Water
BSPP Threads: Air, Cutting Oil, Fuel Oil, Gasoline, Mineral Oil, Water
UN/UNF (SAE Straight) Threads: Air, Cutting Oil, Fuel Oil, Gasoline, Hydraulic Fluid, Mineral Oil
Metric:
NPT, BSPT, and UN/UNF (SAE Straight) Threads: Air, Cutting Oil, Fuel Oil, Gasoline, Hydraulic Fluid, Mineral Oil, Natural Gas, Steam, Water - Tubing:
Inch:
NPT and UN/UNF (SAE Straight) Threads: Use with welded or seamless 304/304L or 316/316L stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
BSPP and BSPT Threads: Use with seamless 304 or 316 stainless steel that meets ASTM A269
Metric:
NPT and BSPT Threads: Use with welded or seamless 304/304L or 316/316L stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
UN/UNF (SAE Straight) Threads: Use with welded or seamless 304/304L or 316/316L stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
For Tube | ||||||||
|---|---|---|---|---|---|---|---|---|
| OD | Wall Thick. | Thread Size | Material | Gasket Material | Max. Pressure | Temp. Range, °F | Each | |
UN/UNF (SAE Straight) Threads | ||||||||
| 3/8" | 0.035" | 9/16"-18 | 316 Stainless Steel | Fluoroelastomer Rubber | 2,500 psi @ 72° F | -15° to 400° | 00000000 | 000000 |
- For Use With: Air, Cutting Oil, Fuel Oil, Gasoline, Hydraulic Fluid, Mineral Oil, Natural Gas, Steam, Water
- Tubing:
Inch:
NPT Threads: Use with welded or seamless 304/304L or 316/316L stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
BSPP and BSPT Threads: Use with seamless 304 or 316 stainless steel that meets ASTM A269
Metric:
NPT Threads: Use with welded or seamless 304/304L or 316/316L stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
For Tube | |||||||
|---|---|---|---|---|---|---|---|
| OD | Wall Thick. | Pipe Size | Material | Max. Pressure | Temp. Range, °F | Each | |
NPT Threads | |||||||
| 5/16" | 0.035" | 1/4 | 316 Stainless Steel | 3,000 psi @ 72° F | -420° to 1200° | 00000000 | 000000 |
- For Use With: Air, Cutting Oil, Fuel Oil, Gasoline, Hydraulic Fluid, Mineral Oil, Natural Gas, Steam, Water
- Tubing: Use with welded or seamless 304/304L or 316/316L stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
Fittings with tube stem insert into the tube end of another fitting in place of a length of tubing.
| Tube Stem OD | Pipe Size | Material | Max. Pressure | Temp. Range, °F | Each | |
NPT Threads | ||||||
|---|---|---|---|---|---|---|
| 1/4" | 1/4 | 316 Stainless Steel | 4,000 psi @ 72° F | -420° to 1200° | 00000000 | 000000 |
- For Use With: Air, Cutting Oil, Fuel Oil, Gasoline, Hydraulic Fluid, Mineral Oil, Natural Gas, Steam, Water
- Tubing: Use with welded or seamless 304/304L or 316/316L stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
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 | Temp. Range, °F | Each | |
| 1/8" | 1/4" | 0.035" | 316 Stainless Steel | 4,000 psi @ 72° F | -420° to 1200° | 00000000 | 000000 |
- For Use With: Air, Cutting Oil, Fuel Oil, Gasoline, Hydraulic Fluid, Mineral Oil, Natural Gas, Steam, Water
- Tubing: Use with welded or seamless 304/304L or 316/316L stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
For Tube | |||||||
|---|---|---|---|---|---|---|---|
| OD | Wall Thick. | Pipe Size | Material | Max. Pressure | Temp. Range, °F | Each | |
| 1/4" | 0.035" | 1/4 | 316 Stainless Steel | 4,000 psi @ 72° F | -420° to 1200° | 0000000 | 000000 |
Tube supports are recommended for soft plastic tubing to prevent the tube from collapsing.
Precision Compression Fittings for Stainless Steel Tubing
- For Use With: Air, Cutting Oil, Ethyl Alcohol, Fuel Oil, Gasoline, Hydraulic Fluid, Isopropyl Alcohol, Mineral Oil, Natural Gas, Steam, Water
- Temperature Range: -420° to 1200° F
- Tubing: Use with welded or seamless 304 or 316 stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
- Compatible With: Parker CPI
Made to tighter tolerances than other compression fittings, these are designed for high-precision applications. Also known as instrumentation fittings and flareless fittings. They come with a nut and a single sleeve (ferrule). The sleeve bites into tubing as you tighten the nut to create a strong seal. Fittings are 316 stainless steel for excellent corrosion resistance. A molybdenum disulfide coating on the nut acts as a lubricant for easy installation.
For technical drawings and 3-D models, click on a part number.
For Tube | ||||||
|---|---|---|---|---|---|---|
| OD | Wall Thick. | Pipe Size | Material | Max. Pressure | Each | |
| 5/16" | 0.035" | 1/4 | 316 Stainless Steel | 3,200 psi @ 72° F | 0000000 | 000000 |
Fittings with tube stem insert into the tube end of another fitting in place of a length of tubing.
| Tube Stem OD | Pipe Size | Material | Max. Pressure | Each | |
| 1/4" | 1/4 | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 000000 |
For Tube | ||||
|---|---|---|---|---|
| OD | Wall Thick. | Nut Material | Max. Pressure | |
| 5/16" | 0.035" | Molybdenum-Disulfide-Coated 316 Stainless Steel | 3,200 psi @ 72° F | 00000000 |
For Tube | ||||
|---|---|---|---|---|
| OD | Wall Thick. | Sleeve Material | Max. Pressure | |
| 5/16" | 0.035" | 316 Stainless Steel | 3,200 psi @ 72° F | 00000000 |
37° Flared Fittings for Copper Tubing
- For Use With: Air, Fuel Oil, Mineral Oil, Water
- Temperature Range: -40° to 400° F
- Tubing: Use with seamless copper
- Specifications Met: ISO 8434, MIL-F-18866, SAE J514
Also known as JIC (Joint Industrial Council) fittings, these provide a tight metal-to-metal seal on tubing that is flared to 37°. They can handle higher pressures than 45° flared fittings. Fittings are brass for good corrosion resistance. They require a nut and a sleeve (ferrule) for each tube end. Nuts and sleeves are sold separately.
For technical drawings and 3-D models, click on a part number.
Compression Fittings for Copper Tubing
- For Use With: Air, Cutting Oil, Fuel Oil, Hydraulic Fluid, Mineral Oil, Water
- Temperature Range: See Table
- Tubing: Use with copper
- Specifications Met: See Table
A single sleeve (ferrule) bites into 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.
NPTF (Dryseal) threads are compatible with NPT threads.
For technical drawings and 3-D models, click on a part number.
For Tube | ||||||||
|---|---|---|---|---|---|---|---|---|
| OD | Wall Thick. | Pipe Size | Material | Max. Pressure | Temp. Range, °F | Specifications Met | Each | |
NPTF Threads | ||||||||
| 1/2" | 0.032" | 1/4 | Brass | 750 psi @ 72° F | -65° to 250° | UL Listed | 0000000 | 000000 |
For Tube | ||||||||
|---|---|---|---|---|---|---|---|---|
| OD | Wall Thick. | Nut Material | Max. Pressure | Temp. Range, °F | Lg. | Specifications Met | Each | |
Long Nuts | ||||||||
| 1/2" | 0.032" | Brass | 200 psi @ 72° F | -65° to 250° | 1 1/16" | UL Listed | 000000000 | 000000 |
For Tube | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Nut Style | OD | Wall Thick. | Nut Material | Sleeve Material | Max. Pressure | Temp. Range, °F | Lg. | Specifications Met | Each | |
| Short | 1/2" | 0.032" | Brass | Brass | 750 psi @ 72° F | -65° to 250° | 1/2" | UL Listed | 00000000 | 00000 |
For Tube | ||||||||
|---|---|---|---|---|---|---|---|---|
| OD | Wall Thick. | Sleeve Material | Max. Pressure | Temp. Range, °F | Specifications Met | Pkg. Qty. | Pkg. | |
| 1/2" | 0.032" | Brass | 200 psi @ 72° F | -65° to 200° | UL Listed | 10 | 000000000 | 000000 |
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.
For technical drawings and 3-D models, click on a part number.
For Tube | ||||||
|---|---|---|---|---|---|---|
| OD | Wall Thick. | Pipe Size | Material | Max. Pressure | Each | |
NPT Threads | ||||||
| 5/16" | 0.035" | 1/4 | Brass | 1,300 psi @ 72° F | 00000000 | 00000 |
Fittings with tube stem insert into the tube end of another fitting in place of a length of tubing.
| Tube Stem OD | Pipe Size | Material | Max. Pressure | Each | |
NPT Threads | |||||
|---|---|---|---|---|---|
| 1/4" | 1/4 | Brass | 1,600 psi @ 72° F | 00000000 | 00000 |
| For Tube OD | Nut Material | Max. Pressure | Each | |
| 5/16" | Brass | 1,300 psi @ 72° F | 00000000 | 00000 |
| For Tube OD | Sleeve Material | Front Sleeve Lg. | Back Sleeve Lg. | Max. Pressure | Each | |
| 5/16" | Brass | 3/16" | 3/32" | 1,300 psi @ 72° F | 00000000 | 00000 |
37° Flared Fittings for Steel Tubing
- Tubing: Use with seamless steel
- Specifications Met: SAE J514
Also known as JIC (Joint Industrial Council) fittings, these provide a tight metal-to-metal seal on tubing that is flared to 37°. They require a nut and a sleeve (ferrule) for each tube end. Nuts and sleeves are sold separately. Fittings are zinc-plated steel for fair corrosion resistance.
NPTF (Dryseal) threads are compatible with NPT threads.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Fuel Oil, Hydraulic Fluid, Mineral Oil
- Temperature Range: -60° to 400° F
| For Tube OD | Pipe Size | Material | Max. Pressure | Each | |
NPTF Threads | |||||
|---|---|---|---|---|---|
| 3/8" | 3/8 | Zinc-Plated Steel | 4,000 psi @ 72° F | 000000000 | 00000 |
- For Use With: Air, Fuel Oil, Hydraulic Fluid, Mineral Oil
- Temperature Range: -60° to 400° F
Use these sleeves with a nut and fitting to provide a tight metal-to-metal seal on steel tubing that is flared to 37°. Sleeves are zinc-plated steel for fair corrosion resistance. They are also known as ferrules.
Inch × metric sleeve adapters convert the fitting from inch to metric.
- For Use With: Air, Fuel Oil, Hydraulic Fluid, Mineral Oil
- Temperature Range: -60° to 400° F
| For Tube OD | Nut Material | Max. Pressure | Each | |
| 3/8" | Zinc-Plated Steel | 4,000 psi @ 72° F | 000000000 | 00000 |
O-Ring Face Seal Fittings for Steel Tubing
(SAE Straight) Male
Threads with Gasket
- For Use With: Air, Hydraulic Fluid
- Temperature Range: -30° to 250° F, except BSPP fittings are -20° to 230° F
- Tubing: Use with seamless steel
- Specifications Met: SAE J1453
A tube adapter sits flush against the flat face of the fitting so you can slide the tubing and fitting sideways to disconnect in cramped spaces. Fittings are also known as zero-clearance fittings. To install, weld a tube adapter to the tubing with a brazing ring (sold separately), then mate the tube adapter to the fitting and screw on the nut. As the nut is tightened, the tube adapter compresses the O-ring, creating a strong seal. Fittings are zinc-plated steel for fair corrosion resistance. Nuts and tube adapters are sold separately.
BSPP and UN/UNF (SAE Straight) male threads have a gasket to prevent leaks. UN/UNF (SAE Straight) threads are also known as O-ring boss threads.
For technical drawings and 3-D models, click on a part number.
(SAE Straight) Male
Threads with Gasket
Fittings that swivel until tightened rotate 360° for easy installation.
| For Tube OD | Thread Size | Material | Gasket Material | Max. Pressure | Each | |
UN/UNF (SAE Straight) Threads | ||||||
|---|---|---|---|---|---|---|
| 1/4" | 7/16"-20 | Zinc-Plated Steel | Buna-N Rubber | 6,000 psi @ 72° F | 0000000 | 000000 |
Material Composition | ||||||
|---|---|---|---|---|---|---|
| For Tube OD | Silver | Cadmium | Zinc | Copper | Each | |
| 1/4" | 45% | 24% | 16% | 15% | 0000000 | 00000 |
| For Tube OD | Nut Material | Max. Pressure | Each | |
| 1/4" | Zinc-Plated Steel | 6,000 psi @ 72° F | 0000000 | 00000 |
| For Tube OD | Max. Pressure | Pkg. Qty. | Pkg. | |
| 1/4" | 6,000 psi @ 72° F | 5 | 0000000 | 00000 |
Yor-Lok Fittings for Steel Tubing
- 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.
For technical drawings and 3-D models, click on a part number.
Fittings with tube stem insert into the tube end of another fitting in place of a length of tubing.
| Tube Stem OD | Pipe Size | Material | Max. Pressure | Temp. Range, °F | Specifications Met | Each | |
NPT Threads | |||||||
|---|---|---|---|---|---|---|---|
| 1/4" | 1/4 | Zinc-Plated Steel | 4,900 psi @ 72° F | -20° to 395° | ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM A108 | 00000000 | 00000 |