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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.
Straight Adapters, Tube × Male Threaded Pipe
- 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. | Pipe Size  | Material | Max. Pressure | Temp. Range, °F | Each | |
NPT Threads | |||||||
| 3mm | 0.5mm | 1/8 | 316 Stainless Steel | 4,000 psi @ 72° F | -420° to 1200° | 00000000 | 000000 |
| 4mm | 1mm | 1/4 | 316 Stainless Steel | 3,500 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 6mm | 1mm | 1/4 | 316 Stainless Steel | 4,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 6mm | 1mm | 3/8 | 316 Stainless Steel | 4,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 6mm | 1mm | 1/2 | 316 Stainless Steel | 4,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 8mm | 1mm | 1/4 | 316 Stainless Steel | 3,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 10mm | 0.5mm | 1/4 | 316 Stainless Steel | 2,500 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 10mm | 0.5mm | 3/8 | 316 Stainless Steel | 2,500 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 10mm | 0.5mm | 1/2 | 316 Stainless Steel | 2,500 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 12mm | 0.5mm | 1/4 | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 12mm | 0.5mm | 3/8 | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 12mm | 0.5mm | 1/2 | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 14mm | 1.5mm | 1/2 | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
Straight Adapters, Tube × Female Threaded Pipe
- 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 | |||||||
| 3mm | 0.5mm | 1/8 | 316 Stainless Steel | 4,000 psi @ 72° F | -420° to 1200° | 00000000 | 000000 |
| 6mm | 1mm | 1/4 | 316 Stainless Steel | 4,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 6mm | 1mm | 3/8 | 316 Stainless Steel | 4,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 6mm | 1mm | 1/2 | 316 Stainless Steel | 4,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 8mm | 1mm | 1/4 | 316 Stainless Steel | 3,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 10mm | 0.5mm | 1/4 | 316 Stainless Steel | 2,500 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 10mm | 0.5mm | 3/8 | 316 Stainless Steel | 2,500 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 10mm | 0.5mm | 1/2 | 316 Stainless Steel | 2,500 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 12mm | 0.5mm | 1/4 | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 12mm | 0.5mm | 3/8 | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 12mm | 0.5mm | 1/2 | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 14mm | 1.5mm | 1/2 | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
Straight Adapters, Metric Tube × Inch Tube
- 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 (Metric) | For Tube (Inch) | |||||||
|---|---|---|---|---|---|---|---|---|
| OD, mm | Wall Thick., mm | OD | Wall Thick. | Material | Max. Pressure | Temp. Range, °F | Each | |
| 4 | 1 | 1/4" | 0.028" | 316 Stainless Steel | 3,500 psi @ 72° F | -420° to 1200° | 00000000 | 000000 |
| 6 | 1 | 1/4" | 0.035" | 316 Stainless Steel | 4,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 10 | 0.5 | 1/4" | 0.035" | 316 Stainless Steel | 2,500 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 12 | 0.5 | 1/4" | 0.035" | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
Straight Connectors, Tube
- 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. | Material | Max. Pressure | Temp. Range, °F | Each | |
| 3mm | 0.5mm | 316 Stainless Steel | 4,000 psi @ 72° F | -420° to 1200° | 00000000 | 000000 |
| 4mm | 1mm | 316 Stainless Steel | 3,500 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 6mm | 1mm | 316 Stainless Steel | 4,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 8mm | 1mm | 316 Stainless Steel | 3,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 10mm | 0.5mm | 316 Stainless Steel | 2,500 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 12mm | 0.5mm | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 14mm | 1.5mm | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
90° Elbow Adapters, Tube × Male Threaded Pipe
- For Use With:
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 - Tubing:
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
For Tube | |||||||
|---|---|---|---|---|---|---|---|
| OD | Wall Thick. | Pipe Size | Material | Max. Pressure | Temp. Range, °F | Each | |
NPT Threads | |||||||
| 4mm | 1mm | 1/4 | 316 Stainless Steel | 3,500 psi @ 72° F | -420° to 1200° | 00000000 | 000000 |
| 6mm | 1mm | 1/4 | 316 Stainless Steel | 4,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 6mm | 1mm | 3/8 | 316 Stainless Steel | 4,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 6mm | 1mm | 1/2 | 316 Stainless Steel | 4,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 8mm | 1mm | 1/4 | 316 Stainless Steel | 3,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 10mm | 0.5mm | 1/4 | 316 Stainless Steel | 2,500 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 10mm | 0.5mm | 3/8 | 316 Stainless Steel | 2,500 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 10mm | 0.5mm | 1/2 | 316 Stainless Steel | 2,500 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 12mm | 0.5mm | 1/4 | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 12mm | 0.5mm | 3/8 | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 12mm | 0.5mm | 1/2 | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
90° Elbow Connectors, Tube
- 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. | Material | Max. Pressure | Temp. Range, °F | Each | |
| 4mm | 1mm | 316 Stainless Steel | 3,500 psi @ 72° F | -420° to 1200° | 00000000 | 000000 |
| 6mm | 1mm | 316 Stainless Steel | 4,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 8mm | 1mm | 316 Stainless Steel | 3,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 10mm | 0.5mm | 316 Stainless Steel | 2,500 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 12mm | 0.5mm | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 14mm | 1.5mm | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
Tee Connectors, Tube
- 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. | Material | Max. Pressure | Temp. Range, °F | Each | |
| 3mm | 0.5mm | 316 Stainless Steel | 4,000 psi @ 72° F | -420° to 1200° | 00000000 | 000000 |
| 4mm | 1mm | 316 Stainless Steel | 3,500 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 6mm | 1mm | 316 Stainless Steel | 4,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 8mm | 1mm | 316 Stainless Steel | 3,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 10mm | 0.5mm | 316 Stainless Steel | 2,500 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 12mm | 0.5mm | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 14mm | 1.5mm | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
Caps
Cap For Tubing
Cap For Fitting
- 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.
For Tube | ||||||
|---|---|---|---|---|---|---|
| OD | Wall Thick. | Material | Max. Pressure | Temp. Range, °F | Each | |
For Tubing | ||||||
| 4mm | 1mm | 316 Stainless Steel | 3,500 psi @ 72° F | -420° to 1200° | 00000000 | 000000 |
| 6mm | 1mm | 316 Stainless Steel | 4,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 8mm | 1mm | 316 Stainless Steel | 3,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 10mm | 0.5mm | 316 Stainless Steel | 2,500 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 12mm | 0.5mm | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
For Fitting | ||||||
| 4mm | 1mm | 316 Stainless Steel | 3,500 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 6mm | 1mm | 316 Stainless Steel | 4,000 psi @ 72° F | -420° to 1200° | 00000000 | 0000 |
| 8mm | 1mm | 316 Stainless Steel | 3,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 10mm | 0.5mm | 316 Stainless Steel | 2,500 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 12mm | 0.5mm | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
Nuts
For Tube | ||||||
|---|---|---|---|---|---|---|
| OD | Wall Thick. | Nut Material | Max. Pressure | Temp. Range, °F | Each | |
| 1/4" | 0.035" | 316 Stainless Steel | 4,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 3mm | 0.5mm | 316 Stainless Steel | 4,000 psi @ 72° F | -420° to 1200° | 00000000 | 0000 |
| 4mm | 1mm | 316 Stainless Steel | 3,500 psi @ 72° F | -420° to 1200° | 00000000 | 0000 |
| 6mm | 1mm | 316 Stainless Steel | 4,000 psi @ 72° F | -420° to 1200° | 00000000 | 0000 |
| 8mm | 1mm | 316 Stainless Steel | 3,000 psi @ 72° F | -420° to 1200° | 00000000 | 0000 |
| 10mm | 0.5mm | 316 Stainless Steel | 2,500 psi @ 72° F | -420° to 1200° | 00000000 | 0000 |
| 12mm | 0.5mm | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 0000 |
| 14mm | 1.5mm | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
Front and Back Sleeves
For Tube | ||||||
|---|---|---|---|---|---|---|
| OD | Wall Thick. | Sleeve Material | Max. Pressure | Temp. Range, °F | Each | |
| 1/4" | 0.035" | 316 Stainless Steel | 4,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 3mm | 0.5mm | 316 Stainless Steel | 4,000 psi @ 72° F | -420° to 1200° | 00000000 | 0000 |
| 4mm | 1mm | 316 Stainless Steel | 3,500 psi @ 72° F | -420° to 1200° | 00000000 | 0000 |
| 6mm | 1mm | 316 Stainless Steel | 4,000 psi @ 72° F | -420° to 1200° | 00000000 | 0000 |
| 8mm | 1mm | 316 Stainless Steel | 3,000 psi @ 72° F | -420° to 1200° | 00000000 | 0000 |
| 10mm | 0.5mm | 316 Stainless Steel | 2,500 psi @ 72° F | -420° to 1200° | 00000000 | 0000 |
| 12mm | 0.5mm | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 0000 |
| 14mm | 1.5mm | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
PTFE Sleeves
PTFE sleeves are plastic instead of stainless steel, so they won’t damage tubing.
| For Tube OD | Sleeve Material | Max. Pressure | Temp. Range, °F | Each | |
| 1/4" | PTFE Plastic | Not Rated | -65° to 350° | 00000000 | 00000 |
Tube Supports
Tube supports are recommended for soft plastic tubing to prevent the tube from collapsing.
For Tube | |||||
|---|---|---|---|---|---|
| OD | ID | Tube Support Material | Temp. Range, °F | Each | |
| 1/4" | 1/8" | 316 Stainless Steel | -420° to 1200° | 00000000 | 00000 |
Front and Back Sleeves for Yor-Lok Fittings for Stainless Steel Tubing
- For Use With: Air, Cutting Oil, Fuel Oil, Gasoline, Hydraulic Fluid, Mineral Oil, Natural Gas, Steam, Water
- Temperature Range: -420° to 1200° F
- Tubing: Use with seamless or welded 304/304L or 316/316L stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
- Compatible With: Let-Lok, Parker A-Lok, Swagelok®
Use 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 technical drawings and 3-D models, click on a part number.
For Tube | |||||
|---|---|---|---|---|---|
| OD | Wall Thick. | Sleeve Material | Max. Pressure | Each | |
| 1/4" | 0.035" | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 00000 |
| 3mm | 0.5mm | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 0000 |
| 4mm | 1mm | 316 Stainless Steel | 3,500 psi @ 72° F | 00000000 | 0000 |
| 6mm | 1mm | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 0000 |
| 8mm | 1mm | 316 Stainless Steel | 3,000 psi @ 72° F | 00000000 | 0000 |
| 10mm | 0.5mm | 316 Stainless Steel | 2,500 psi @ 72° F | 00000000 | 0000 |
| 12mm | 0.5mm | 316 Stainless Steel | 2,000 psi @ 72° F | 00000000 | 0000 |
| 14mm | 1.5mm | 316 Stainless Steel | 2,000 psi @ 72° F | 00000000 | 00000 |
Nuts for Yor-Lok Fittings for Stainless Steel Tubing
- For Use With: Air, Cutting Oil, Fuel Oil, Gasoline, Hydraulic Fluid, Mineral Oil, Natural Gas, Steam, Water
- Temperature Range: -420° to 1200° F
- Tubing: Use with seamless or welded 304/304L or 316/316L stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
- Compatible With: Let-Lok, Parker A-Lok, Swagelok®
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 technical drawings and 3-D models, click on a part number.
For Tube | |||||
|---|---|---|---|---|---|
| OD | Wall Thick. | Nut Material | Max. Pressure | Each | |
| 1/4" | 0.035" | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 00000 |
| 3mm | 0.5mm | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 0000 |
| 4mm | 1mm | 316 Stainless Steel | 3,500 psi @ 72° F | 00000000 | 0000 |
| 6mm | 1mm | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 0000 |
| 8mm | 1mm | 316 Stainless Steel | 3,000 psi @ 72° F | 00000000 | 0000 |
| 10mm | 0.5mm | 316 Stainless Steel | 2,500 psi @ 72° F | 00000000 | 0000 |
| 12mm | 0.5mm | 316 Stainless Steel | 2,000 psi @ 72° F | 00000000 | 0000 |
| 14mm | 1.5mm | 316 Stainless Steel | 2,000 psi @ 72° F | 00000000 | 00000 |