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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.
For technical drawings and 3-D models, click on a part number.
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 | 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 |
| 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 |
| 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 | 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 |
Nuts
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 | 0000 |
| 5/8" | 0.049" | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 0000 |
| 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 |
Front and Back Sleeves
For Tube | ||||||
|---|---|---|---|---|---|---|
| OD | Wall Thick. | Sleeve 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 | 0000 |
| 5/8" | 0.049" | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 0000 |
| 3/4" | 0.049" | 316 Stainless Steel | 2,000 psi @ 72° F | -420° to 1200° | 00000000 | 0000 |
| 1" | 0.065" | 316 Stainless Steel | 1,500 psi @ 72° F | -420° to 1200° | 00000000 | 00000 |
PTFE Sleeves
PTFE sleeves are plastic instead of stainless steel, so they won’t damage tubing.
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 | |
| 3/16" | 1/8" | 316 Stainless Steel | -420° to 1200° | 00000000 | 00000 |
| 1/4" | 1/8" | 316 Stainless Steel | -420° to 1200° | 00000000 | 0000 |
| 5/16" | 1/4" | 316 Stainless Steel | -420° to 1200° | 00000000 | 0000 |
| 3/8" | 1/4" | 316 Stainless Steel | -420° to 1200° | 00000000 | 0000 |
| 1/2" | 1/4" | 316 Stainless Steel | -420° to 1200° | 00000000 | 0000 |
| 5/8" | 3/8" | 316 Stainless Steel | -420° to 1200° | 00000000 | 00000 |
| 3/4" | 1/2" | 316 Stainless Steel | -420° to 1200° | 00000000 | 00000 |