How to Identify and Measure Fittings
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Yor-Lok Fittings for Stainless Steel Tubing
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.
For technical drawings and 3-D models, click on a part number.
- 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
Caps for tubing have a nut and a sleeve so you can close off the end of your tubing in place of a fitting. Caps for fittings replace the nut and sleeve of an existing fitting.
Use these nuts with Yor-Lok sleeves and fittings to create an extra-strong seal on stainless steel tubing. They are 316 stainless steel for excellent corrosion resistance.
For Tube | ||||||
|---|---|---|---|---|---|---|
| OD | Wall Thick. | Nut Material | Max. Pressure | Temp. Range, °F | Each | |
| 6mm | 1mm | 316 Stainless Steel | 4,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
Couple these sleeves with Yor-Lok nuts and fittings to create an extra-strong seal on stainless steel tubing. Sleeves are 316 stainless steel for excellent corrosion resistance. They are also known as ferrules.
For Tube | Front Sleeve | Back Sleeve | |||||||
|---|---|---|---|---|---|---|---|---|---|
| OD | Wall Thick. | Sleeve Material | Lg. | No. Included | Lg. | No. Included | Max. Pressure | Each | |
Sleeves | |||||||||
| 6mm | 1mm | 316 Stainless Steel | 5mm | 1 | 3mm | 1 | 4,000 psi @ 72° F | 00000000 | 00000 |
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 front sleeve, back sleeve, and nut is made of 316 stainless steel for excellent corrosion resistance. Five sets of sleeves and nuts come on each dispenser. Sleeves are also known as ferrules.
For Tube | Front Sleeve | Back Sleeve | Nut | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| OD | Wall Thick. | Material | Lg. | No. Included | Lg. | No. Included | Lg. | No. Included | Max. Pressure | Each | |
Sets with Dispenser | |||||||||||
| 6mm | 1mm | 316 Stainless Steel | 5mm | 5 | 3mm | 5 | 13mm | 5 | 4,000 psi @ 72° F | 0000000 | 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.
Front Sleeve | Back Sleeve | |||||||
|---|---|---|---|---|---|---|---|---|
| For Tube OD | Sleeve Material | Lg. | No. Included | Lg. | No. Included | Max. Pressure | Each | |
| 6mm | Brass | 5mm | 1 | 3mm | 1 | 2,030 psi @ 72° F | 00000000 | 00000 |
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 | |
| 6mm | Brass | 5mm | 5 | 3mm | 5 | 13mm | 5 | 1,600 psi @ 72° F | 0000000 | 000000 |
For Tube | Tube Support | |||||
|---|---|---|---|---|---|---|
| OD | ID | Style | Material | Max. Pressure | Each | |
| 6mm | 4mm | Barbed | Brass | 1,600 psi @ 72° F | 0000000 | 00000 |
Compression Fittings for Steel Tubing
- For Use With: Inch: Air, Hydraulic Fluid, Water
Metric: Hydraulic Fluid - Tubing: Inch: Use with welded steel
Metric: Use with seamless steel - Specifications Met: Inch: SAE J514
Metric: ISO 8434, DIN 2353
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 and bite fittings.
Zinc-plated steel fittings have fair corrosion resistance.
ISO 8434 (formerly DIN 2353) fittings meet international standards for tube fitting pressures.
- Temperature Range: See table
For Tube | ||||||
|---|---|---|---|---|---|---|
| OD | Wall Thick. | Material | Max. Pressure | Temp. Range, °F | Each | |
| 6mm | Not Rated | Zinc-Plated Steel | 3,600 psi @ 72° F | -20° to 230° | 0000000 | 00000 |
- Temperature Range: -20° to 230° F
| Number of Pieces | Includes | Material | Max. Pressure | Each | |
| 72 | Plug for 6 mm OD Tubing (4 each) Plug for 8 mm OD Tubing (4 each) Plug for 10 mm OD Tubing (6 each) Plug for 12 mm OD Tubing (6 each) Plug for 15 mm OD Tubing (6 each) Plug for 18 mm OD Tubing (4 each) Plug for 22 mm OD Tubing (4 each) Plug for 28 mm OD Tubing (2 each) Cap for 6 mm OD Tubing (4 each) Cap for 8 mm OD Tubing (4 each) Cap for 10 mm OD Tubing (6 each) Cap for 12 mm OD Tubing (6 each) Cap for 15 mm OD Tubing (6 each) Cap for 18 mm OD Tubing (4 each) Cap for 22 mm OD Tubing (4 each) Cap for 28 mm OD Tubing (2 each) Metal Box | Zinc-Plated Steel | 2,300 psi @ 72° F | 00000000 | 0000000 |
High-Pressure Compression Fittings for Steel Tubing
- For Use With: Hydraulic Fluid
- Specifications Met: DIN 2353, ISO 8434
Thicker walls make these fittings—sometimes called flareless or bite fittings—withstand about twice as much pressure as standard compression fittings, so they’re good for hydraulic power applications. Their single sleeve, or ferrule, bites into tubing as you tighten the nut, creating a seal that is leak tight even at high heat. The nut and sleeve are included. All meet ISO 8434 (formerly DIN 2353), which is an international standard for tube fitting pressures.
For technical drawings and 3-D models, click on a part number.
- Temperature Range: -75° to 750° F
- Tubing: Use with seamless steel
| For Tube OD, mm | Material | Maximum Pressure | Each | |
| 6 | Steel | 11,600 psi @ 72° F | 00000000 | 00000 |
- Temperature Range: -75° to 750° F
- Tubing: Use with seamless steel
| For Tube OD, mm | Nut Material | Maximum Pressure | Each | |
| 6 | Steel | 11,600 psi @ 72° F | 0000000 | 00000 |
- Temperature Range: -75° to 750° F
- Tubing: Use with seamless steel
| For Tube OD, mm | Sleeve Material | Maximum Pressure | Each | |
| 6 | Steel | 11,600 psi @ 72° F | 0000000 | 00000 |
Push-to-Connect Tube Fittings for Air
- Temperature Range: 0° to 170° F, except polybutylene plastic fittings are 32° to 140° F
- Tubing: Use with firm (Durometer 95A-45D) polyethylene plastic or polyurethane rubber
- Specifications Met: ISO 14743, except cartridges and 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. Use them in low-pressure applications.
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.
Caps fit over a tube stem end of a fitting or a piece of tubing.
| For Tube OD | Material | Color | Release Ring Color | Max. Pressure | Each | |
| 6mm | Nylon Plastic | Black | Black | 290 psi @ 72° F | 00000000 | 00000 |
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.
For technical drawings and 3-D models, click on a part number.
Install plugs on the end of fittings to block the flow of air or water.
For Tube, mm | ||||||
|---|---|---|---|---|---|---|
| OD | Wall Thick. | Material | Max. Pressure | Temp. Range, °F | Each | |
| 6 | 1 | Brass | 2100 psi @ 72° F | -75° to 550° | 0000000 | 00000 |
- Temperature Range: -75° to 550° F
- Tubing: Use with hard or firm (Rockwell 15T 1-15T 60) nylon plastic, polyethylene plastic, polypropylene plastic, or polyurethane rubber
For Tube | |||||
|---|---|---|---|---|---|
| OD | ID | Tube Support Material | Max Pressure | Each | |
| 6mm | 4mm | Brass | 2100 psi @ 72° F | 0000000 | 00000 |
- For Use With:
Short nuts: Air, Water, Lubricated Air
Long nuts: Air, Water, Cutting Oil, Fuel Oil, Hydraulic Fluid, Mineral Oil - Temperature Range: See table
- Tubing:
Short nuts: Use with firm or hard (Durometer 1A-95A or Rockwell 15T 1-15T 60) nylon plastic, polyethylene plastic, polypropylene plastic, or polyurethane rubber
Long nuts: Use with firm or hard (Durometer 1A-95A) copper, nylon plastic, polyethylene plastic, polypropylene plastic, or polyurethane rubber - Specifications Met: See table
For Tube | ||||||
|---|---|---|---|---|---|---|
| OD | Wall Thick. | Nut Material | Max. Pressure | Temp. Range, °F | Each | |
Short Nuts | ||||||
| 6mm | 1mm | Brass | 2100 psi @ 72° F | -75° to 550° | 0000000 | 00000 |
- For Use With:
UL Listed sleeves: Air, Water, Cutting Oil, Fuel Oil, Hydraulic Fluid, Mineral Oil
All other sleeves: Air, Water, Lubricated Air - Temperature Range: See table
- Tubing:
UL Listed sleeves: Use with firm or hard (Durometer 1A-95A) copper, nylon plastic, polyethylene plastic, polypropylene plastic, or polyurethane rubber
All other sleeves: 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: See table
For Tube | Sleeve | |||||
|---|---|---|---|---|---|---|
| OD | Wall Thick. | Material | Max. Pressure | Temp. Range, °F | Each | |
| 6mm | 1mm | Brass | 2100 psi @ 72° F | -75° to 550° | 0000000 | 00000 |
Push-to-Connect Tube Fittings for Hot Drinking Water
- Temperature Range: 35° to 200° F
- Tubing: Use with hard polyethylene plastic
- Specifications Met: NSF/ANSI 51, NSF/ANSI 61
Run hot water through these fittings at temperatures up to 200° F. 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. Fittings are nylon for excellent impact and abrasion resistance.
For technical drawings and 3-D models, click on a part number.
Caps fit over a tube stem end of a fitting or a piece of tubing.
| For Tube OD | Material | Color | Release Ring Color | Max. Pressure | Each | |
| 6mm | Nylon Plastic | White | Gray | 230 psi @ 72° F | 00000000 | 00000 |