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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.
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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.
Straight Adapters, Tube × Butt-Weld Pipe
- 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 | |
| 1/8" | 0.035" | 1/8 | 316 Stainless Steel | 6,000 psi @ 72° F | -420° to 1200° | 0000000 | 000000 |
| 3/16" | 0.035" | 1/8 | 316 Stainless Steel | 5,500 psi @ 72° F | -420° to 1200° | 0000000 | 00000 |
| 1/4" | 0.035" | 1/8 | 316 Stainless Steel | 4,000 psi @ 72° F | -420° to 1200° | 0000000 | 00000 |
| 1/4" | 0.035" | 1/4 | 316 Stainless Steel | 4,000 psi @ 72° F | -420° to 1200° | 0000000 | 00000 |
| 5/16" | 0.035" | 1/4 | 316 Stainless Steel | 3,000 psi @ 72° F | -420° to 1200° | 0000000 | 00000 |
| 3/8" | 0.035" | 1/4 | 316 Stainless Steel | 2,500 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 3/8" | 0.035" | 3/8 | 316 Stainless Steel | 2,500 psi @ 72° F | -420° to 1200° | 0000000 | 00000 |
| 3/8" | 0.035" | 1/2 | 316 Stainless Steel | 2,500 psi @ 72° F | -420° to 1200° | 0000000 | 00000 |
| 1/2" | 0.035" | 3/8 | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 1/2" | 0.035" | 1/2 | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 0000000 | 00000 |
| 1/2" | 0.035" | 3/4 | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 0000000 | 00000 |
| 5/8" | 0.049" | 1/2 | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 0000000 | 00000 |
| 3/4" | 0.049" | 3/4 | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 0000000 | 00000 |
| 1" | 0.065" | 1 | 316 Stainless Steel | 1,500 psi @ 72° F | -420° to 1200° | 0000000 | 000000 |
| 3mm | 0.5mm | 1/8 | 316 Stainless Steel | 9,700 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 3mm | 0.5mm | 1/4 | 316 Stainless Steel | 9,700 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 8mm | 1 to 1.5 mm | 1/4 | 316 Stainless Steel | 4,400 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 12mm | 1 to 2 mm | 1/2 | 316 Stainless Steel | 2,900 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
90° Elbow Adapters, Tube × Butt-Weld Pipe
- 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 | |
| 1/8" | 0.035" | 1/8 | 316 Stainless Steel | 6,000 psi @ 72° F | -420° to 1200° | 0000000 | 000000 |
| 1/4" | 0.035" | 1/8 | 316 Stainless Steel | 4,000 psi @ 72° F | -420° to 1200° | 0000000 | 00000 |
| 1/4" | 0.035" | 1/4 | 316 Stainless Steel | 4,000 psi @ 72° F | -420° to 1200° | 0000000 | 00000 |
| 3/8" | 0.035" | 1/4 | 316 Stainless Steel | 2,500 psi @ 72° F | -420° to 1200° | 0000000 | 00000 |
| 1/2" | 0.035" | 3/8 | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 0000000 | 00000 |
| 1/2" | 0.035" | 1/2 | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 0000000 | 000000 |
| 3/4" | 0.049" | 3/4 | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 0000000 | 00000 |
| 1" | 0.065" | 1 | 316 Stainless Steel | 1,500 psi @ 72° F | -420° to 1200° | 0000000 | 000000 |
Nuts
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 | |
| 1/8" | 0.035" | 316 Stainless Steel | 6,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 3/16" | 0.035" | 316 Stainless Steel | 5,500 psi @ 72° F | -420° to 1200° | 00000000 | 0000 |
| 1/4" | 0.035" | 316 Stainless Steel | 4,000 psi @ 72° F | -420° to 1200° | 00000000 | 0000 |
| 5/16" | 0.035" | 316 Stainless Steel | 3,000 psi @ 72° F | -420° to 1200° | 00000000 | 0000 |
| 3/8" | 0.035" | 316 Stainless Steel | 2,500 psi @ 72° F | -420° to 1200° | 00000000 | 0000 |
| 1/2" | 0.035" | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 5/8" | 0.049" | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 3/4" | 0.049" | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 1" | 0.065" | 316 Stainless Steel | 1,500 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
| 3mm | 0.5mm | 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 |
| 12mm | 0.5mm | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 0000 |
Front and Back Sleeves
Sleeves
Sleeves with Dispenser
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 | |||||||||
| 1/8" | 0.035" | 316 Stainless Steel | 3/16" | 1 | 3/32" | 1 | 6,000 psi @ 72° F | 00000000 | 00000 |
| 3/16" | 0.035" | 316 Stainless Steel | 3/16" | 1 | 3/32" | 1 | 5,500 psi @ 72° F | 00000000 | 0000 |
| 1/4" | 0.035" | 316 Stainless Steel | 3/16" | 1 | 3/32" | 1 | 4,000 psi @ 72° F | 00000000 | 0000 |
| 5/16" | 0.035" | 316 Stainless Steel | 3/16" | 1 | 3/32" | 1 | 3,000 psi @ 72° F | 00000000 | 0000 |
| 3/8" | 0.035" | 316 Stainless Steel | 3/16" | 1 | 3/32" | 1 | 2,500 psi @ 72° F | 00000000 | 0000 |
| 1/2" | 0.035" | 316 Stainless Steel | 19/64" | 1 | 5/32" | 1 | 2,000 psi @ 72° F | 00000000 | 0000 |
| 5/8" | 0.049" | 316 Stainless Steel | 19/64" | 1 | 5/32" | 1 | 2,000 psi @ 72° F | 00000000 | 0000 |
| 3/4" | 0.049" | 316 Stainless Steel | 19/64" | 1 | 5/32" | 1 | 2,000 psi @ 72° F | 00000000 | 0000 |
| 1" | 0.065" | 316 Stainless Steel | 3/8" | 1 | 13/64" | 1 | 1,500 psi @ 72° F | 00000000 | 00000 |
| 3mm | 0.5mm | 316 Stainless Steel | 5mm | 1 | 3mm | 1 | 4,000 psi @ 72° F | 00000000 | 0000 |
| 8mm | 1mm | 316 Stainless Steel | 5mm | 1 | 3mm | 1 | 3,000 psi @ 72° F | 00000000 | 0000 |
| 12mm | 0.5mm | 316 Stainless Steel | 7mm | 1 | 4mm | 1 | 2,000 psi @ 72° F | 00000000 | 0000 |
Sleeves with Dispenser | |||||||||
| 1/8" | 0.035" | 316 Stainless Steel | 3/16" | 10 | 3/32" | 10 | 6,000 psi @ 72° F | 00000000 | 00000 |
| 3/16" | 0.035" | 316 Stainless Steel | 3/16" | 10 | 3/32" | 10 | 5,500 psi @ 72° F | 00000000 | 00000 |
| 1/4" | 0.035" | 316 Stainless Steel | 3/16" | 10 | 7/64" | 10 | 4,000 psi @ 72° F | 00000000 | 00000 |
| 5/16" | 0.035" | 316 Stainless Steel | 3/16" | 10 | 7/64" | 10 | 3,000 psi @ 72° F | 00000000 | 00000 |
| 3/8" | 0.035" | 316 Stainless Steel | 3/16" | 10 | 7/64" | 10 | 2,500 psi @ 72° F | 00000000 | 00000 |
| 1/2" | 0.035" | 316 Stainless Steel | 9/32" | 10 | 5/32" | 10 | 2,000 psi @ 72° F | 00000000 | 00000 |
| 5/8" | 0.049" | 316 Stainless Steel | 9/32" | 10 | 5/32" | 10 | 2,000 psi @ 72° F | 00000000 | 00000 |
| 3/4" | 0.049" | 316 Stainless Steel | 9/32" | 10 | 5/32" | 10 | 1,900 psi @ 72° F | 00000000 | 00000 |
| 1" | 0.065" | 316 Stainless Steel | 3/8" | 10 | 13/64" | 10 | 1,500 psi @ 72° F | 00000000 | 000000 |
Sleeve and Nut Sets
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 | |||||||||||
| 1/8" | 0.035" | 316 Stainless Steel | 3/16" | 5 | 3/32" | 5 | 15/32" | 5 | 6,000 psi @ 72° F | 0000000 | 000000 |
| 3/16" | 0.035" | 316 Stainless Steel | 3/16" | 5 | 3/32" | 5 | 15/32" | 5 | 5,500 psi @ 72° F | 0000000 | 00000 |
| 1/4" | 0.035" | 316 Stainless Steel | 3/16" | 5 | 7/64" | 5 | 1/2" | 5 | 4,000 psi @ 72° F | 0000000 | 00000 |
| 5/16" | 0.035" | 316 Stainless Steel | 3/16" | 5 | 7/64" | 5 | 17/32" | 5 | 3,000 psi @ 72° F | 0000000 | 00000 |
| 3/8" | 0.035" | 316 Stainless Steel | 3/16" | 5 | 7/64" | 5 | 9/16" | 5 | 2,500 psi @ 72° F | 0000000 | 00000 |
| 1/2" | 0.035" | 316 Stainless Steel | 9/32" | 5 | 5/32" | 5 | 11/16" | 5 | 2,000 psi @ 72° F | 0000000 | 00000 |
| 5/8" | 0.049" | 316 Stainless Steel | 9/32" | 5 | 5/32" | 5 | 11/16" | 5 | 2,000 psi @ 72° F | 0000000 | 00000 |
| 3/4" | 0.049" | 316 Stainless Steel | 9/32" | 5 | 5/32" | 5 | 11/16" | 5 | 1,900 psi @ 72° F | 0000000 | 000000 |
| 1" | 0.065" | 316 Stainless Steel | 3/8" | 5 | 13/64" | 5 | 13/16" | 5 | 1,500 psi @ 72° F | 0000000 | 000000 |
| 3mm | 0.8mm | 316 Stainless Steel | 5mm | 5 | 3mm | 5 | 12mm | 5 | 4,000 psi @ 72° F | 0000000 | 00000 |
| 8mm | 1mm | 316 Stainless Steel | 5mm | 5 | 3mm | 5 | 14mm | 5 | 3,000 psi @ 72° F | 0000000 | 00000 |
| 12mm | 1mm | 316 Stainless Steel | 7mm | 5 | 4mm | 5 | 17mm | 5 | 2,000 psi @ 72° F | 0000000 | 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 | |
| 1/8" | PTFE Plastic | Not Rated | -65° to 350° | 00000000 | 00000 |
| 3/16" | PTFE Plastic | Not Rated | -65° to 350° | 00000000 | 00000 |
| 1/4" | PTFE Plastic | Not Rated | -65° to 350° | 00000000 | 0000 |
| 5/16" | PTFE Plastic | Not Rated | -65° to 350° | 00000000 | 0000 |
| 3/8" | PTFE Plastic | Not Rated | -65° to 350° | 00000000 | 0000 |
| 1/2" | PTFE Plastic | Not Rated | -65° to 350° | 00000000 | 0000 |
| 5/8" | PTFE Plastic | Not Rated | -65° to 350° | 00000000 | 00000 |
| 3/4" | PTFE Plastic | Not Rated | -65° to 350° | 00000000 | 00000 |
| 1" | PTFE Plastic | Not Rated | -65° to 350° | 00000000 | 00000 |
Tube Supports
Smooth
Barbed
Tube supports are recommended for soft plastic tubing to prevent the tube from collapsing.
For Tube | ||||||
|---|---|---|---|---|---|---|
| OD | ID | Tube Support Material | Tube Support Style | Temp. Range, °F | Each | |
| 3/16" | 1/8" | 316 Stainless Steel | Smooth | -420° to 1200° | 00000000 | 000000 |
| 1/4" | 1/8" | 316 Stainless Steel | Smooth | -420° to 1200° | 00000000 | 0000 |
| 5/16" | 1/8" | 316 Stainless Steel | Barbed | -420° to 1200° | 00000000 | 0000 |
| 5/16" | 3/16" | 316 Stainless Steel | Barbed | -420° to 1200° | 00000000 | 0000 |
| 5/16" | 1/4" | 316 Stainless Steel | Smooth | -420° to 1200° | 00000000 | 00000 |
| 3/8" | 1/4" | 316 Stainless Steel | Smooth | -420° to 1200° | 00000000 | 0000 |
| 1/2" | 1/4" | 316 Stainless Steel | Smooth | -420° to 1200° | 00000000 | 00000 |
| 5/8" | 3/8" | 316 Stainless Steel | Smooth | -420° to 1200° | 00000000 | 00000 |
| 3/4" | 1/2" | 316 Stainless Steel | Smooth | -420° to 1200° | 00000000 | 00000 |
| 3/4" | 5/8" | 316 Stainless Steel | Barbed | -420° to 1200° | 00000000 | 00000 |
| 1" | 3/4" | 316 Stainless Steel | Smooth | -420° to 1200° | 00000000 | 00000 |
| 8mm | 6mm | 316 Stainless Steel | Barbed | -420° to 1200° | 00000000 | 0000 |
| 10mm | 8mm | 316 Stainless Steel | Barbed | -420° to 1200° | 00000000 | 0000 |
| 12mm | 8mm | 316 Stainless Steel | Barbed | -420° to 1200° | 00000000 | 0000 |
| 12mm | 10mm | 316 Stainless Steel | Barbed | -420° to 1200° | 00000000 | 0000 |