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.
More
Cleaned and Bagged 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
For applications that require an extra level of cleanliness, these fittings are individually bagged to prevent contamination. They include a nut with two sleeves (ferrules) for 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, or A-Lok fittings. Fittings are 316 stainless steel for excellent corrosion resistance. Replacement nuts and sleeves are not cleaned and bagged.
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 | ||||||
| 1/8" | 0.035" | 1/8 | 316 Stainless Steel | 6,000 psi @ 72° F | 00000000 | 000000 |
| 1/8" | 0.035" | 1/4 | 316 Stainless Steel | 6,000 psi @ 72° F | 00000000 | 00000 |
| 1/4" | 0.035" | 1/8 | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 00000 |
| 1/4" | 0.035" | 1/4 | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 00000 |
| 3/8" | 0.035" | 1/4 | 316 Stainless Steel | 2,500 psi @ 72° F | 00000000 | 00000 |
| 3/8" | 0.035" | 3/8 | 316 Stainless Steel | 2,500 psi @ 72° F | 00000000 | 00000 |
| 1/2" | 0.035" | 1/2 | 316 Stainless Steel | 2,000 psi @ 72° F | 00000000 | 00000 |
For Tube | ||||||
|---|---|---|---|---|---|---|
| OD | Wall Thick. | Pipe Size | Material | Max. Pressure | Each | |
NPT Threads | ||||||
| 1/8" | 0.035" | 1/8 | 316 Stainless Steel | 6,000 psi @ 72° F | 00000000 | 000000 |
| 1/8" | 0.035" | 1/4 | 316 Stainless Steel | 6,000 psi @ 72° F | 00000000 | 00000 |
| 1/4" | 0.035" | 1/8 | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 00000 |
| 1/4" | 0.035" | 1/4 | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 00000 |
| 3/8" | 0.035" | 1/4 | 316 Stainless Steel | 2,500 psi @ 72° F | 00000000 | 00000 |
| 3/8" | 0.035" | 3/8 | 316 Stainless Steel | 2,500 psi @ 72° F | 00000000 | 00000 |
| 1/2" | 0.035" | 1/2 | 316 Stainless Steel | 2,000 psi @ 72° F | 00000000 | 00000 |
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 | Each | |
| 1/8" | 1/8" | 0.035" | 316 Stainless Steel | 6,000 psi @ 72° F | 00000000 | 000000 |
| 1/4" | 1/4" | 0.035" | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 00000 |
| 3/8" | 3/8" | 0.035" | 316 Stainless Steel | 2,500 psi @ 72° F | 00000000 | 00000 |
| 1/2" | 1/2" | 0.035" | 316 Stainless Steel | 2,000 psi @ 72° F | 00000000 | 00000 |
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.
For Tube | |||||||
|---|---|---|---|---|---|---|---|
| OD | Wall Thick. | Material | Max. Pressure | For Hole Dia. | For Max. Wall Thick. | Each | |
| 1/8" | 0.035" | 316 Stainless Steel | 6,000 psi @ 72° F | 3/8" | 1/2" | 00000000 | 000000 |
| 1/4" | 0.035" | 316 Stainless Steel | 4,000 psi @ 72° F | 1/2" | 17/32" | 00000000 | 00000 |
| 3/8" | 0.035" | 316 Stainless Steel | 2,500 psi @ 72° F | 5/8" | 9/16" | 00000000 | 00000 |
| 1/2" | 0.035" | 316 Stainless Steel | 2,000 psi @ 72° F | 3/4" | 19/32" | 00000000 | 00000 |
For Tube | ||||||
|---|---|---|---|---|---|---|
| OD | Wall Thick. | Pipe Size | Material | Max. Pressure | Each | |
NPT Threads | ||||||
| 1/8" | 0.035" | 1/8 | 316 Stainless Steel | 6,000 psi @ 72° F | 00000000 | 000000 |
| 1/8" | 0.035" | 1/4 | 316 Stainless Steel | 6,000 psi @ 72° F | 00000000 | 00000 |
| 1/4" | 0.035" | 1/8 | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 00000 |
| 1/4" | 0.035" | 1/4 | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 00000 |
| 3/8" | 0.035" | 1/4 | 316 Stainless Steel | 2,500 psi @ 72° F | 00000000 | 00000 |
| 3/8" | 0.035" | 3/8 | 316 Stainless Steel | 2,500 psi @ 72° F | 00000000 | 00000 |
| 1/2" | 0.035" | 1/2 | 316 Stainless Steel | 2,000 psi @ 72° F | 00000000 | 00000 |
For Tube | ||||||
|---|---|---|---|---|---|---|
| OD | Wall Thick. | Pipe Size | Material | Max. Pressure | Each | |
NPT Threads | ||||||
| 1/4" | 0.035" | 1/8 | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 000000 |
| 1/4" | 0.035" | 1/4 | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 00000 |
| 3/8" | 0.035" | 1/4 | 316 Stainless Steel | 2,500 psi @ 72° F | 00000000 | 00000 |
| 3/8" | 0.035" | 3/8 | 316 Stainless Steel | 2,500 psi @ 72° F | 00000000 | 00000 |
| 1/2" | 0.035" | 1/2 | 316 Stainless Steel | 2,000 psi @ 72° F | 00000000 | 00000 |
For Tube | ||||||
|---|---|---|---|---|---|---|
| OD | Wall Thick. | Pipe Size | Material | Max. Pressure | Each | |
NPT Threads | ||||||
| 1/4" | 0.035" | 1/8 | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 000000 |
| 1/4" | 0.035" | 1/4 | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 00000 |
| 3/8" | 0.035" | 1/4 | 316 Stainless Steel | 2,500 psi @ 72° F | 00000000 | 00000 |
| 3/8" | 0.035" | 3/8 | 316 Stainless Steel | 2,500 psi @ 72° F | 00000000 | 00000 |
Inline tees are also known as branch tees.
For Tube | ||||||
|---|---|---|---|---|---|---|
| OD | Wall Thick. | Pipe Size | Material | Max. Pressure | Each | |
NPT Threads | ||||||
| 1/8" | 0.035" | 1/8 | 316 Stainless Steel | 6,000 psi @ 72° F | 00000000 | 000000 |
| 1/4" | 0.035" | 1/8 | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 00000 |
| 1/4" | 0.035" | 1/4 | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 00000 |
| 3/8" | 0.035" | 1/4 | 316 Stainless Steel | 2,500 psi @ 72° F | 00000000 | 00000 |
| 1/2" | 0.035" | 1/2 | 316 Stainless Steel | 2,000 psi @ 72° F | 00000000 | 000000 |
