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Precision Compression Fittings for Stainless Steel Tubing
- For Use With: Air, Cutting Oil, Ethyl Alcohol, Fuel Oil, Gasoline, Hydraulic Fluid, Isopropyl Alcohol, Mineral Oil, Natural Gas, Steam, Water
- Temperature Range: -420° to 1200° F
- Tubing: Use with welded or seamless 304 or 316 stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
- Compatible With: Parker CPI
Made to tighter tolerances than other compression fittings, these are designed for high-precision applications. Also known as instrumentation fittings and flareless fittings. They come with a nut and a single sleeve (ferrule). The sleeve bites into tubing as you tighten the nut to create a strong seal. Fittings are 316 stainless steel for excellent corrosion resistance. A molybdenum disulfide coating on the nut acts as a lubricant for easy installation.
For technical drawings and 3-D models, click on a part number.
Caps
For Tubing
For Fitting
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 | For Tubing | For Fitting | |||||
|---|---|---|---|---|---|---|---|
| OD | Wall Thick. | Material | Max. Pressure | Each | Each | ||
| 1/16" | 0.02" | 316 Stainless Steel | 7,500 psi @ 72° F | 00000000 | 000000 | 00000000 | 000000 |
| 1/8" | 0.035" | 316 Stainless Steel | 5,500 psi @ 72° F | 00000000 | 00000 | 00000000 | 00000 |
| 3/16" | 0.035" | 316 Stainless Steel | 5,500 psi @ 72° F | 00000000 | 00000 | 00000000 | 00000 |
| 1/4" | 0.035" | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 00000 | 00000000 | 0000 |
| 5/16" | 0.035" | 316 Stainless Steel | 3,200 psi @ 72° F | 00000000 | 00000 | 00000000 | 00000 |
| 3/8" | 0.035" | 316 Stainless Steel | 2,600 psi @ 72° F | 00000000 | 00000 | 00000000 | 00000 |
| 1/2" | 0.035" | 316 Stainless Steel | 2,100 psi @ 72° F | 00000000 | 00000 | 00000000 | 00000 |
| 5/8" | 0.049" | 316 Stainless Steel | 2,100 psi @ 72° F | 00000000 | 00000 | 00000000 | 00000 |
| 3/4" | 0.049" | 316 Stainless Steel | 2,100 psi @ 72° F | 00000000 | 00000 | 00000000 | 00000 |
Nuts
For Tube | ||||
|---|---|---|---|---|
| OD | Wall Thick. | Nut Material | Max. Pressure | |
| 1/16" | 0.02" | Molybdenum-Disulfide-Coated 316 Stainless Steel | 7,500 psi @ 72° F | 00000000 |
| 3/16" | 0.035" | Molybdenum-Disulfide-Coated 316 Stainless Steel | 5,500 psi @ 72° F | 00000000 |
| 1/4" | 0.035" | Molybdenum-Disulfide-Coated 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 |
| 5/16" | 0.035" | Molybdenum-Disulfide-Coated 316 Stainless Steel | 3,200 psi @ 72° F | 00000000 |
| 3/8" | 0.035" | Molybdenum-Disulfide-Coated 316 Stainless Steel | 2,600 psi @ 72° F | 00000000 |
| 1/2" | 0.035" | Molybdenum-Disulfide-Coated 316 Stainless Steel | 2,100 psi @ 72° F | 00000000 |
| 5/8" | 0.049" | Molybdenum-Disulfide-Coated 316 Stainless Steel | 2,100 psi @ 72° F | 00000000 |
| 3/4" | 0.049" | Molybdenum-Disulfide-Coated 316 Stainless Steel | 2,100 psi @ 72° F | 00000000 |
Sleeves
For Tube | ||||
|---|---|---|---|---|
| OD | Wall Thick. | Sleeve Material | Max. Pressure | |
| 1/16" | 0.02" | 316 Stainless Steel | 7,500 psi @ 72° F | 00000000 |
| 1/8" | 0.035" | 316 Stainless Steel | 5,500 psi @ 72° F | 00000000 |
| 3/16" | 0.035" | 316 Stainless Steel | 5,500 psi @ 72° F | 00000000 |
| 1/4" | 0.035" | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 |
| 5/16" | 0.035" | 316 Stainless Steel | 3,200 psi @ 72° F | 00000000 |
| 3/8" | 0.035" | 316 Stainless Steel | 2,600 psi @ 72° F | 00000000 |
| 1/2" | 0.035" | 316 Stainless Steel | 2,100 psi @ 72° F | 00000000 |
| 5/8" | 0.049" | 316 Stainless Steel | 2,100 psi @ 72° F | 00000000 |
| 3/4" | 0.049" | 316 Stainless Steel | 2,100 psi @ 72° F | 00000000 |
Compression Fittings for Stainless Steel Tubing
For technical drawings and 3-D models, click on a part number.
Caps
- For Use With: Air, Hydraulic Fluid, Water
- Temperature Range: -420° to 1200° F
- Tubing: Use with welded or seamless 304 or 316 stainless steel that meets ASTM A269
- Specifications Met: SAE J514
For Tube | |||||
|---|---|---|---|---|---|
| OD | Wall Thick. | Material | Max. Pressure | Each | |
| 1/8" | 0.028" | 316 Stainless Steel | 4,300 psi @ 72° F | 000000000 | 000000 |
| 1/4" | 0.035" | 316 Stainless Steel | 4,000 psi @ 72° F | 000000000 | 00000 |
| 3/8" | 0.035" | 316 Stainless Steel | 2,600 psi @ 72° F | 000000000 | 00000 |
| 1/2" | 0.049" | 316 Stainless Steel | 1,900 psi @ 72° F | 000000000 | 00000 |
| 5/8" | 0.058" | 316 Stainless Steel | 2,300 psi @ 72° F | 000000000 | 00000 |
| 3/4" | 0.065" | 316 Stainless Steel | 1,900 psi @ 72° F | 000000000 | 00000 |
| 1" | 0.065" | 316 Stainless Steel | 1,900 psi @ 72° F | 000000000 | 000000 |
Nuts
- For Use With: See table
- Temperature Range: See table
- Tubing: See table
- Specifications Met: See table
For Tube | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| OD | Wall Thick. | Nut Material | Max. Pressure | For Use With | Temp. Range, °F | For Tube Material | For Tube Specifications Met | For Tube Fabrication | Specifications Met | Each | |
| 1/8" | 0.028" | 316 Stainless Steel | 4,300 psi @ 72° F | Air, Hydraulic Fluid, Water | -420° to 1200° | 304 Stainless Steel, 316 Stainless Steel | ASTM A269 | Seamless, Welded | SAE J514 | 000000000 | 00000 |
| 1/4" | 0.035" | 316 Stainless Steel | 4,000 psi @ 72° F | Air, Hydraulic Fluid, Water | -420° to 1200° | 304 Stainless Steel, 316 Stainless Steel | ASTM A269 | Seamless, Welded | SAE J514 | 000000000 | 0000 |
| 3/8" | 0.035" | 316 Stainless Steel | 2,600 psi @ 72° F | Air, Hydraulic Fluid, Water | -420° to 1200° | 304 Stainless Steel, 316 Stainless Steel | ASTM A269 | Seamless, Welded | SAE J514 | 000000000 | 0000 |
| 1/2" | 0.049" | 316 Stainless Steel | 1,900 psi @ 72° F | Air, Hydraulic Fluid, Water | -420° to 1200° | 304 Stainless Steel, 316 Stainless Steel | ASTM A269 | Seamless, Welded | SAE J514 | 000000000 | 0000 |
| 5/8" | 0.058" | 316 Stainless Steel | 2,300 psi @ 72° F | Air, Hydraulic Fluid, Water | -420° to 1200° | 304 Stainless Steel, 316 Stainless Steel | ASTM A269 | Seamless, Welded | SAE J514 | 000000000 | 00000 |
| 3/4" | 0.065" | 316 Stainless Steel | 1,900 psi @ 72° F | Air, Hydraulic Fluid, Water | -420° to 1200° | 304 Stainless Steel, 316 Stainless Steel | ASTM A269 | Seamless, Welded | SAE J514 | 000000000 | 00000 |
| 1" | 0.065" | 316 Stainless Steel | 1,900 psi @ 72° F | Air, Hydraulic Fluid, Water | -420° to 1200° | 304 Stainless Steel, 316 Stainless Steel | ASTM A269 | Seamless, Welded | SAE J514 | 000000000 | 00000 |
Sleeves
- For Use With:
17-4 PH Stainless Steel: Air, Hydraulic Fluid, Water
316 Stainless Steel: Air, Cutting Oil, Ethyl Alcohol, Fuel Oil, Gasoline, Hydraulic Fluid, Isopropyl Alcohol, Mineral Oil, Natural Gas, Steam, Water - Temperature Range:
17-4 PH Stainless Steel: -420° to 1200° F
316 Stainless Steel: -75° to 750° F - Tubing:
17-4 PH Stainless Steel: Use with welded or seamless 304 or 316 stainless steel that meets ASTM A269
316 Stainless Steel: Use with seamless 304 or 316/316L/316Ti stainless steel that meets DIN EN 10216-5 or DIN EN 10305-1 - Specifications Met:
17-4 PH Stainless Steel: SAE J514
316 Stainless Steel: ISO 8434-1, DIN 2353
For Tube | |||||
|---|---|---|---|---|---|
| OD | Wall Thick. | Sleeve Material | Max. Pressure | Each | |
| 1/8" | 0.028" | 17-4 PH Stainless Steel | 4,300 psi @ 72° F | 000000000 | 00000 |
| 1/4" | 0.035" | 17-4 PH Stainless Steel | 4,000 psi @ 72° F | 000000000 | 0000 |
| 3/8" | 0.035" | 17-4 PH Stainless Steel | 2,600 psi @ 72° F | 000000000 | 0000 |
| 1/2" | 0.049" | 17-4 PH Stainless Steel | 1,900 psi @ 72° F | 000000000 | 0000 |
| 5/8" | 0.058" | 17-4 PH Stainless Steel | 2,300 psi @ 72° F | 000000000 | 0000 |
| 3/4" | 0.065" | 17-4 PH Stainless Steel | 1,900 psi @ 72° F | 000000000 | 00000 |
| 1" | 0.065" | 17-4 PH Stainless Steel | 1,900 psi @ 72° F | 000000000 | 00000 |