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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.

Inline tees are also known as branch tees.
For Tube | ||||||
---|---|---|---|---|---|---|
OD | Wall Thick. | Pipe Size | Material | Max. Pressure | Each | |
1/8" | 0.035" | 1/8 | 316 Stainless Steel | 5,500 psi @ 72° F | 00000000 | 000000 |
1/8" | 0.035" | 1/4 | 316 Stainless Steel | 5,500 psi @ 72° F | 00000000 | 00000 |
3/16" | 0.035" | 1/8 | 316 Stainless Steel | 5,500 psi @ 72° F | 00000000 | 00000 |
1/4" | 0.035" | 1/8 | 316 Stainless Steel | 4,000 psi @ 72° F | 0000000 | 00000 |
1/4" | 0.035" | 1/4 | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 00000 |
1/4" | 0.035" | 3/8 | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 00000 |
1/4" | 0.035" | 1/2 | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 000000 |
5/16" | 0.035" | 1/4 | 316 Stainless Steel | 3,200 psi @ 72° F | 00000000 | 00000 |
3/8" | 0.035" | 1/4 | 316 Stainless Steel | 2,600 psi @ 72° F | 00000000 | 00000 |
3/8" | 0.035" | 3/8 | 316 Stainless Steel | 2,600 psi @ 72° F | 00000000 | 00000 |
3/8" | 0.035" | 1/2 | 316 Stainless Steel | 2,600 psi @ 72° F | 00000000 | 000000 |
1/2" | 0.035" | 1/2 | 316 Stainless Steel | 2,100 psi @ 72° F | 0000000 | 00000 |
5/8" | 0.049" | 1/2 | 316 Stainless Steel | 2,100 psi @ 72° F | 0000000 | 00000 |
3/4" | 0.049" | 3/4 | 316 Stainless Steel | 2,100 psi @ 72° F | 0000000 | 000000 |

Inline tees are also known as branch tees.
For Tube | ||||||
---|---|---|---|---|---|---|
OD | Wall Thick. | Pipe Size | Material | Max. Pressure | Each | |
1/8" | 0.035" | 1/8 | 316 Stainless Steel | 5,500 psi @ 72° F | 00000000 | 000000 |
1/8" | 0.035" | 1/4 | 316 Stainless Steel | 5,500 psi @ 72° F | 00000000 | 00000 |
1/4" | 0.035" | 1/8 | 316 Stainless Steel | 4,000 psi @ 72° F | 0000000 | 00000 |
1/4" | 0.035" | 1/4 | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 00000 |
1/4" | 0.035" | 3/8 | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 000000 |
1/4" | 0.035" | 1/2 | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 000000 |
5/16" | 0.035" | 1/8 | 316 Stainless Steel | 3,200 psi @ 72° F | 00000000 | 00000 |
5/16" | 0.035" | 1/4 | 316 Stainless Steel | 3,200 psi @ 72° F | 00000000 | 00000 |
3/8" | 0.035" | 1/4 | 316 Stainless Steel | 2,600 psi @ 72° F | 00000000 | 00000 |
3/8" | 0.035" | 3/8 | 316 Stainless Steel | 2,600 psi @ 72° F | 00000000 | 000000 |
3/8" | 0.035" | 1/2 | 316 Stainless Steel | 2,600 psi @ 72° F | 00000000 | 000000 |
1/2" | 0.035" | 1/2 | 316 Stainless Steel | 2,100 psi @ 72° F | 0000000 | 00000 |
5/8" | 0.049" | 1/2 | 316 Stainless Steel | 2,100 psi @ 72° F | 0000000 | 000000 |
3/4" | 0.049" | 3/4 | 316 Stainless Steel | 2,100 psi @ 72° F | 0000000 | 000000 |

Right-angle tees are also known as run tees.
For Tube | ||||||
---|---|---|---|---|---|---|
OD | Wall Thick. | Pipe Size | Material | Max. Pressure | Each | |
1/8" | 0.035" | 1/8 | 316 Stainless Steel | 5,500 psi @ 72° F | 00000000 | 000000 |
1/8" | 0.035" | 1/4 | 316 Stainless Steel | 5,500 psi @ 72° F | 00000000 | 00000 |
3/16" | 0.035" | 1/8 | 316 Stainless Steel | 5,500 psi @ 72° F | 00000000 | 00000 |
1/4" | 0.035" | 1/8 | 316 Stainless Steel | 4,000 psi @ 72° F | 0000000 | 00000 |
1/4" | 0.035" | 1/4 | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 00000 |
1/4" | 0.035" | 3/8 | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 00000 |
1/4" | 0.035" | 1/2 | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 000000 |
5/16" | 0.035" | 1/8 | 316 Stainless Steel | 3,200 psi @ 72° F | 00000000 | 00000 |
5/16" | 0.035" | 1/4 | 316 Stainless Steel | 3,200 psi @ 72° F | 00000000 | 00000 |
3/8" | 0.035" | 1/4 | 316 Stainless Steel | 2,600 psi @ 72° F | 00000000 | 00000 |
3/8" | 0.035" | 3/8 | 316 Stainless Steel | 2,600 psi @ 72° F | 00000000 | 00000 |
3/8" | 0.035" | 1/2 | 316 Stainless Steel | 2,600 psi @ 72° F | 00000000 | 000000 |
1/2" | 0.035" | 1/2 | 316 Stainless Steel | 2,100 psi @ 72° F | 0000000 | 00000 |
5/8" | 0.049" | 1/2 | 316 Stainless Steel | 2,100 psi @ 72° F | 0000000 | 000000 |
3/4" | 0.049" | 3/4 | 316 Stainless Steel | 2,100 psi @ 72° F | 0000000 | 000000 |

For Tube | |||||
---|---|---|---|---|---|
OD | Wall Thick. | Material | Max. Pressure | Each | |
1/16" | 0.02" | 316 Stainless Steel | 7,500 psi @ 72° F | 0000000 | 000000 |
1/8" | 0.035" | 316 Stainless Steel | 5,500 psi @ 72° F | 00000000 | 00000 |
3/16" | 0.035" | 316 Stainless Steel | 5,500 psi @ 72° F | 00000000 | 00000 |
1/4" | 0.035" | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 00000 |
5/16" | 0.035" | 316 Stainless Steel | 3,200 psi @ 72° F | 00000000 | 00000 |
3/8" | 0.035" | 316 Stainless Steel | 2,600 psi @ 72° F | 00000000 | 00000 |
1/2" | 0.035" | 316 Stainless Steel | 2,100 psi @ 72° F | 0000000 | 00000 |
5/8" | 0.049" | 316 Stainless Steel | 2,100 psi @ 72° F | 0000000 | 00000 |
3/4" | 0.049" | 316 Stainless Steel | 2,100 psi @ 72° F | 0000000 | 000000 |

For Tube | |||||
---|---|---|---|---|---|
OD | Wall Thick. | Nut Material | Max. Pressure | Each | |
1/16" | 0.02" | Molybdenum-Disulfide-Coated 316 Stainless Steel | 7,500 psi @ 72° F | 00000000 | 00000 |
1/8" | 0.035" | Molybdenum-Disulfide-Coated 316 Stainless Steel | 5,500 psi @ 72° F | 00000000 | 0000 |
3/16" | 0.035" | Molybdenum-Disulfide-Coated 316 Stainless Steel | 5,500 psi @ 72° F | 00000000 | 0000 |
1/4" | 0.035" | Molybdenum-Disulfide-Coated 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 0000 |
5/16" | 0.035" | Molybdenum-Disulfide-Coated 316 Stainless Steel | 3,200 psi @ 72° F | 00000000 | 0000 |
3/8" | 0.035" | Molybdenum-Disulfide-Coated 316 Stainless Steel | 2,600 psi @ 72° F | 00000000 | 0000 |
1/2" | 0.035" | Molybdenum-Disulfide-Coated 316 Stainless Steel | 2,100 psi @ 72° F | 00000000 | 0000 |
5/8" | 0.049" | Molybdenum-Disulfide-Coated 316 Stainless Steel | 2,100 psi @ 72° F | 00000000 | 00000 |
3/4" | 0.049" | Molybdenum-Disulfide-Coated 316 Stainless Steel | 2,100 psi @ 72° F | 00000000 | 00000 |

For Tube | |||||
---|---|---|---|---|---|
OD | Wall Thick. | Sleeve Material | Max. Pressure | Each | |
1/16" | 0.02" | 316 Stainless Steel | 7,500 psi @ 72° F | 00000000 | 00000 |
1/8" | 0.035" | 316 Stainless Steel | 5,500 psi @ 72° F | 00000000 | 0000 |
3/16" | 0.035" | 316 Stainless Steel | 5,500 psi @ 72° F | 00000000 | 0000 |
1/4" | 0.035" | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 0000 |
5/16" | 0.035" | 316 Stainless Steel | 3,200 psi @ 72° F | 00000000 | 0000 |
3/8" | 0.035" | 316 Stainless Steel | 2,600 psi @ 72° F | 00000000 | 0000 |
1/2" | 0.035" | 316 Stainless Steel | 2,100 psi @ 72° F | 00000000 | 0000 |
5/8" | 0.049" | 316 Stainless Steel | 2,100 psi @ 72° F | 00000000 | 0000 |
3/4" | 0.049" | 316 Stainless Steel | 2,100 psi @ 72° F | 00000000 | 00000 |
Compression Fittings for Stainless Steel Tubing

- For Use With:
303 Stainless Steel, 316 Stainless Steel with 17-4 PH Stainless Steel Sleeve, and 360 Brass: Air, Water, Hydraulic Fluid
316 Stainless Steel: Air, Cutting Oil, Ethyl Alcohol, Fuel Oil, Gasoline, Hydraulic Fluid, Isopropyl Alcohol, Mineral Oil, Natural Gas, Steam, Water - Temperature Range: See table
- Tubing:
303 Stainless Steel and 360 Brass: Use with welded or seamless 304 or 316 stainless steel
316 Stainless Steel: Use with seamless 304 or 316/316L/316Ti stainless steel that meets DIN EN 10216-5 or DIN EN 10305-1
316 Stainless Steel with 17-4 PH Stainless Steel Sleeve: Use with welded or seamless 304 or 316 stainless steel that meets ASTM A269 - Specifications Met:
316 Stainless Steel: ISO 8434, DIN 2353
316 Stainless Steel with 17-4 PH Stainless Steel Sleeve: SAE J514
A single sleeve (ferrule) bites into tubing as you tighten the nut, creating a strong seal. The nut and sleeve are included. Fittings are also known as flareless fittings or bite fittings.
316 stainless steel fittings have excellent corrosion resistance.
ISO and DIN fittings meet international dimensional standards.
For technical drawings and 3-D models, click on a part number.

For Tube | |||||||
---|---|---|---|---|---|---|---|
OD, mm | Wall Thick., mm | Material | Sleeve Material | Max. Pressure | Temp. Range, °F | Each | |
6 | 1 | 316 Stainless Steel | 316 Stainless Steel | 7,200 psi @ 72° F | -75° to 750° | 0000000 | 000000 |
8 | 1-1.5 | 316 Stainless Steel | 316 Stainless Steel | 7,200 psi @ 72° F | -75° to 750° | 0000000 | 00000 |
10 | 1-2 | 316 Stainless Steel | 316 Stainless Steel | 7,200 psi @ 72° F | -75° to 750° | 0000000 | 00000 |
12 | 1-2 | 316 Stainless Steel | 316 Stainless Steel | 5,800 psi @ 72° F | -75° to 750° | 0000000 | 00000 |
15 | 1-2 | 316 Stainless Steel | 316 Stainless Steel | 5,800 psi @ 72° F | -75° to 750° | 0000000 | 00000 |

For Tube | ||||||
---|---|---|---|---|---|---|
OD | Wall Thick. | Nut Material | Max. Pressure | Temp. Range, °F | Each | |
6mm | 1mm | 316 Stainless Steel | 7,200 psi @ 72° F | -75° to 750° | 0000000 | 00000 |
8mm | 1-1.5mm | 316 Stainless Steel | 7,200 psi @ 72° F | -75° to 750° | 0000000 | 0000 |
10mm | 1-2mm | 316 Stainless Steel | 7,200 psi @ 72° F | -75° to 750° | 0000000 | 0000 |
12mm | 1-2mm | 316 Stainless Steel | 5,800 psi @ 72° F | -75° to 750° | 0000000 | 0000 |
15mm | 1-2mm | 316 Stainless Steel | 5,800 psi @ 72° F | -75° to 750° | 0000000 | 00000 |

For Tube | ||||||
---|---|---|---|---|---|---|
OD | Wall Thick. | Sleeve Material | Max. Pressure | Temp. Range, °F | Each | |
15mm | 1-2mm | 316 Stainless Steel | 5,800 psi @ 72° F | -75° to 750° | 0000000 | 00000 |
Nickel-Plated Brass Compression Fittings for Copper Tubing

- For Use With: Air, Cutting Oil, Diesel Fuel, Ethyl Alcohol, Fuel Oil, Gasoline, Hydraulic Fluid, Isopropyl Alcohol, Lubricants, Mineral Oil, Natural Gas, Steam, Water
- Temperature Range: -75° to 550° F, except 90° elbow adapters with BSPP threads are 0° to 170° F
- Tubing: Use with copper
- Specifications Met: DIN 3861, except nuts meet DIN 3870
With a nickel-plated finish, these compression fittings resist corrosion better than plain brass fittings. They have a single sleeve (ferrule) made of plain brass that gently bites into copper tubing as you tighten the nut, creating a strong seal. The nut and sleeve are included. These fittings are also known as flareless fittings. All meet DIN standards for tube fitting dimensions.
For technical drawings and 3-D models, click on a part number.

Inline tees are also known as branch tees.

Right-angle tees are also known as run tees.

For Tube | ||||||
---|---|---|---|---|---|---|
OD, mm | Wall Thickness, mm | Nut Material | Maximum Pressure | Length, mm | Each | |
Short Nuts | ||||||
4 | 1 | Nickel-Plated Brass | 1,800 psi @ 72° F | 11 | 00000000 | 00000 |
6 | 1 | Nickel-Plated Brass | 2,500 psi @ 72° F | 12 | 00000000 | 000 |
8 | 1 | Nickel-Plated Brass | 2,100 psi @ 72° F | 12 | 00000000 | 000 |
10 | 1 | Nickel-Plated Brass | 1,600 psi @ 72° F | 16 | 00000000 | 0000 |
12 | 1 | Nickel-Plated Brass | 1,000 psi @ 72° F | 16 | 00000000 | 0000 |
Precision Compression Fittings for Copper Tubing

- For Use With: Air, Cutting Oil, Ethyl Alcohol, Fuel Oil, Gasoline, Hydraulic Fluid, Isopropyl Alcohol, Mineral Oil, Natural Gas, Steam, Water
- Temperature Range: -40° to 350° F
- Tubing: Use with seamless copper that meets ASTM B68, ASTM B75, or ASTM B88
- Compatible With: Parker CPI
Made to tighter tolerances than other compression fittings, these are designed for high-precision applications. They are 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. The nut has a molybdenum disulfide coating that acts as a lubricant for easy installation. Fittings are brass for good corrosion resistance.
For technical drawings and 3-D models, click on a part number.

Inline tees are also known as branch tees.
For Tube | ||||||
---|---|---|---|---|---|---|
OD | Wall Thick. | Pipe Size | Material | Max. Pressure | Each | |
NPT Threads | ||||||
1/8" | 0.028" | 1/4 | Brass | 2,700 psi @ 72° F | 00000000 | 000000 |
1/8" | 0.035" | 1/8 | Brass | 2,700 psi @ 72° F | 0000000 | 00000 |
1/4" | 0.028" | 3/8 | Brass | 1,200 psi @ 72° F | 00000000 | 00000 |
1/4" | 0.028" | 1/2 | Brass | 1,200 psi @ 72° F | 00000000 | 00000 |
1/4" | 0.035" | 1/8 | Brass | 1,600 psi @ 72° F | 0000000 | 00000 |
1/4" | 0.035" | 1/4 | Brass | 1,200 psi @ 72° F | 0000000 | 00000 |
5/16" | 0.035" | 1/4 | Brass | 1,200 psi @ 72° F | 00000000 | 00000 |
3/8" | 0.035" | 1/4 | Brass | 1,000 psi @ 72° F | 0000000 | 00000 |
3/8" | 0.035" | 3/8 | Brass | 1,000 psi @ 72° F | 0000000 | 00000 |
3/8" | 0.035" | 1/2 | Brass | 1,000 psi @ 72° F | 00000000 | 00000 |
1/2" | 0.049" | 1/2 | Brass | 1,200 psi @ 72° F | 0000000 | 00000 |
5/8" | 0.065" | 1/2 | Brass | 1,300 psi @ 72° F | 0000000 | 00000 |
3/4" | 0.065" | 3/4 | Brass | 1,000 psi @ 72° F | 0000000 | 000000 |

Inline tees are also known as branch tees.
For Tube | ||||||
---|---|---|---|---|---|---|
OD | Wall Thick. | Pipe Size | Material | Max. Pressure | Each | |
NPT Threads | ||||||
1/8" | 0.028" | 1/4 | Brass | 2,700 psi @ 72° F | 00000000 | 000000 |
1/8" | 0.035" | 1/8 | Brass | 2,700 psi @ 72° F | 0000000 | 00000 |
3/16" | 0.028" | 1/8 | Brass | 1,200 psi @ 72° F | 00000000 | 000000 |
1/4" | 0.028" | 3/8 | Brass | 1,200 psi @ 72° F | 00000000 | 00000 |
1/4" | 0.028" | 1/2 | Brass | 1,200 psi @ 72° F | 00000000 | 00000 |
1/4" | 0.035" | 1/8 | Brass | 1,200 psi @ 72° F | 0000000 | 00000 |
1/4" | 0.035" | 1/4 | Brass | 1,200 psi @ 72° F | 0000000 | 00000 |
5/16" | 0.035" | 1/8 | Brass | 1,200 psi @ 72° F | 00000000 | 00000 |
5/16" | 0.035" | 1/4 | Brass | 1,200 psi @ 72° F | 00000000 | 00000 |
3/8" | 0.035" | 1/4 | Brass | 1,000 psi @ 72° F | 0000000 | 00000 |
3/8" | 0.035" | 3/8 | Brass | 1,000 psi @ 72° F | 00000000 | 00000 |
3/8" | 0.035" | 1/2 | Brass | 1,000 psi @ 72° F | 00000000 | 00000 |
1/2" | 0.049" | 1/2 | Brass | 1,200 psi @ 72° F | 0000000 | 00000 |
5/8" | 0.065" | 1/2 | Brass | 1,300 psi @ 72° F | 0000000 | 00000 |
3/4" | 0.065" | 3/4 | Brass | 1,000 psi @ 72° F | 0000000 | 00000 |

Right-angle tees are also known as run tees.
For Tube | ||||||
---|---|---|---|---|---|---|
OD | Wall Thick. | Pipe Size | Material | Max. Pressure | Each | |
NPT Threads | ||||||
1/8" | 0.028" | 1/4 | Brass | 2,700 psi @ 72° F | 00000000 | 000000 |
1/8" | 0.035" | 1/8 | Brass | 2,700 psi @ 72° F | 0000000 | 00000 |
3/16" | 0.028" | 1/8 | Brass | 1,200 psi @ 72° F | 00000000 | 00000 |
1/4" | 0.028" | 3/8 | Brass | 1,200 psi @ 72° F | 00000000 | 00000 |
1/4" | 0.028" | 1/2 | Brass | 1,200 psi @ 72° F | 00000000 | 00000 |
1/4" | 0.035" | 1/8 | Brass | 1,200 psi @ 72° F | 0000000 | 00000 |
1/4" | 0.035" | 1/4 | Brass | 1,200 psi @ 72° F | 0000000 | 00000 |
5/16" | 0.035" | 1/4 | Brass | 1,200 psi @ 72° F | 00000000 | 00000 |
3/8" | 0.035" | 1/4 | Brass | 1,000 psi @ 72° F | 0000000 | 00000 |
3/8" | 0.035" | 1/2 | Brass | 1,000 psi @ 72° F | 00000000 | 00000 |
1/2" | 0.049" | 1/2 | Brass | 1,200 psi @ 72° F | 0000000 | 00000 |
3/4" | 0.065" | 3/4 | Brass | 1,000 psi @ 72° F | 0000000 | 000000 |

For Tube | |||||
---|---|---|---|---|---|
OD | Wall Thick. | Nut Material | Max. Pressure | Each | |
1/8" | 0.035" | Brass | 2,700 psi @ 72° F | 00000000 | 00000 |
3/16" | 0.035" | Brass | 1,200 psi @ 72° F | 00000000 | 0000 |
1/4" | 0.035" | Brass | 1,200 psi @ 72° F | 00000000 | 0000 |
5/16" | 0.035" | Brass | 1,200 psi @ 72° F | 00000000 | 0000 |
3/8" | 0.035" | Brass | 1,000 psi @ 72° F | 00000000 | 0000 |
1/2" | 0.049" | Brass | 1,200 psi @ 72° F | 00000000 | 0000 |
5/8" | 0.065" | Brass | 1,300 psi @ 72° F | 00000000 | 0000 |
3/4" | 0.065" | Brass | 1,000 psi @ 72° F | 00000000 | 0000 |

For Tube | |||||
---|---|---|---|---|---|
OD | Wall Thick. | Sleeve Material | Max. Pressure | Each | |
1/8" | 0.035" | Brass | 2,700 psi @ 72° F | 00000000 | 00000 |
3/16" | 0.035" | Brass | 1,200 psi @ 72° F | 00000000 | 0000 |
1/4" | 0.035" | Brass | 1,200 psi @ 72° F | 00000000 | 0000 |
5/16" | 0.035" | Brass | 1,200 psi @ 72° F | 00000000 | 0000 |
3/8" | 0.035" | Brass | 1,000 psi @ 72° F | 00000000 | 0000 |
1/2" | 0.049" | Brass | 1,200 psi @ 72° F | 00000000 | 0000 |
5/8" | 0.065" | Brass | 1,300 psi @ 72° F | 00000000 | 0000 |
3/4" | 0.065" | Brass | 1,000 psi @ 72° F | 00000000 | 0000 |