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| Reducer | Reducing Adapter |
Connection Style Connection Style |
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| Compression |
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Material Material |
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For Tube Material For Tube Material |
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For Use With For Use With |
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Nut Material Nut Material |
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Sleeve Material Sleeve Material |
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Maximum Pressure Maximum Pressure |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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Length Length |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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For Tube Hardness For Tube Hardness |
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Nut Finish Nut Finish |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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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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Tight-Seal Brass Compression Tube Fittings for Air and Water
- Temperature Range: -65° to 250° F
- Tubing: Use with firm (Durometer 95A) EVA plastic or polyurethane rubber
- Specifications Met: SAE J512
A built-in tube support slips inside the tubing to prevent collapsing and provides a sturdy connection for an extra-tight seal. Fittings have a single sleeve (ferrule) that compresses the tubing as you tighten the nut. The nut and sleeve are included. Fittings are also known as flareless fittings. They are brass for good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Fittings with 45° female flared tube end have an internal flare that mates with a male 45° flared fitting.
| For Tube OD (A) | For Tube OD (B) | Material | Max. Pressure | Each | |
UN/UNF (SAE 45°) Threads | |||||
|---|---|---|---|---|---|
| 3/8" | 1/4" | Brass | 90 psi @ 72° F | 00000000 | 00000 |
Inline tees are also known as branch tees.
| For Tube OD (A) | For Tube OD (B) | Material | Max. Pressure | Each | |
| 3/8" | 1/4" | Brass | 90 psi @ 72° F | 00000000 | 000000 |
Brass Compression Tube Fittings for Air and Water
- For Use With: Air, Lubricated Air, Water
- Temperature Range: See table
- Tubing: Use with firm or hard (Durometer 1A-95A or Rockwell 15T 1-15T 60) nylon plastic, polyethylene plastic, polypropylene plastic or polyurethane rubber
- Specifications Met: SAE J512, except metric sizes
A single sleeve (ferrule) compresses the tubing as you tighten the nut, creating a strong seal. The nut and sleeve are included. Fittings are also known as flareless fittings. They are brass for good corrosion resistance.
Tube supports (sold separately) are recommended if you want to use the fittings with soft polypropylene and polyethylene tubing to prevent the tube from collapsing.
Install plugs with a nut (sold separately) on the end of fittings to block the flow of air or water.
For technical drawings and 3-D models, click on a part number.
For Tube (A) | For Tube (B) | |||||||
|---|---|---|---|---|---|---|---|---|
| OD | Wall Thick. | OD | Wall Thick. | Material | Max. Pressure | Temp. Range, °F | Each | |
| 1/4" | 0.03" | 3/16" | 0.03" | Brass | 300 psi @ 72° F | -65° to 250° | 000000000 | 000000 |
| 3/8" | 0.032" | 1/4" | 0.032" | Brass | 200 psi @ 72° F | -65° to 250° | 000000000 | 00000 |
| 1/2" | 0.032" | 3/8" | 0.032" | Brass | 200 psi @ 72° F | -65° to 250° | 000000000 | 00000 |
| 5/8" | 0.035" | 3/8" | 0.035" | Brass | 150 psi @ 72° F | -65° to 250° | 000000000 | 00000 |
- For Use With: See table
- Temperature Range: See table
- Tubing:
Tube supports for use with air and lubricated air: Use with firm or soft (Durometer 1A-95A) polyethylene plastic or polyurethane rubber
Tube supports for use with air, lubricated air, and water: Use with hard or firm (Rockwell 15T 1-15T 60) nylon plastic, polyethylene plastic, polypropylene plastic, or polyurethane rubber - Specifications Met: SAE J512, except metric sizes
For Tube | ||||||||
|---|---|---|---|---|---|---|---|---|
| OD | ID | For Use With | Tube Support Material | Max Pressure | Temp. Range, °F | Pkg. Qty. | Pkg. | |
| 3/16" | 1/8" | Air, Lubricated Air | Brass | 400 psi @ 72° F | -65° to 250° | 10 | 000000000 | 000000 |
| 1/4" | 1/8" | Air, Lubricated Air | Brass | 300 psi @ 72° F | -65° to 250° | 10 | 000000000 | 00000 |
| 1/4" | 5/32" | Air, Lubricated Air | Brass | 165 psi @ 75° F | -65° to 250° | 10 | 000000000 | 00000 |
| 3/8" | 1/4" | Air, Lubricated Air | Brass | 165 psi @ 75° F | -65° to 250° | 10 | 000000000 | 00000 |
| 1/2" | 3/8" | Air, Lubricated Air | Brass | 135 psi @ 75° F | -65° to 250° | 5 | 000000000 | 0000 |
| 5/8" | 15/32" | Air, Lubricated Air | Brass | 150 psi @ 72° F | -65° to 250° | 5 | 000000000 | 00000 |
- For Use With: Air, Lubricated Air, Water
- Temperature Range: See table
- Tubing: Use with firm or hard (Durometer 1A-95A or Rockwell 15T 1-15T 60) nylon plastic, polyethylene plastic, polypropylene plastic or polyurethane rubber
- Specifications Met: SAE J512, except metric sizes
For Tube | ||||||
|---|---|---|---|---|---|---|
| OD | Wall Thick. | Nut Material | Max. Pressure | Temp. Range, °F | Each | |
| 3/16" | 0.03" | Brass | 400 psi @ 72° F | -65° to 250° | 000000000 | 00000 |
| 1/4" | 0.03" | Brass | 300 psi @ 72° F | -65° to 250° | 000000000 | 0000 |
| 3/8" | 0.032" | Brass | 200 psi @ 72° F | -65° to 250° | 000000000 | 0000 |
| 1/2" | 0.032" | Brass | 200 psi @ 72° F | -65° to 250° | 000000000 | 0000 |
| 5/8" | 0.035" | Brass | 150 psi @ 72° F | -65° to 250° | 000000000 | 0000 |
- For Use With: Air, Lubricated Air, Water
- Temperature Range: See table
- Tubing: Use with firm or hard (Durometer 1A-95A or Rockwell 15T 1-15T 60) nylon plastic, polyethylene plastic, polypropylene plastic or polyurethane rubber
- Specifications Met: SAE J512, except metric sizes
For Tube | Sleeve | |||||||
|---|---|---|---|---|---|---|---|---|
| OD | Wall Thick. | Material | Color | Max. Pressure | Temp. Range, °F | Pkg. Qty. | Pkg. | |
| 1/4" | 0.03" | Acetal Plastic | White | 300 psi @ 72° F | -65° to 250° | 10 | 000000000 | 00000 |
| 3/8" | 0.032" | Acetal Plastic | White | 200 psi @ 72° F | -65° to 250° | 10 | 000000000 | 0000 |
| 1/2" | 0.032" | Acetal Plastic | White | 200 psi @ 72° F | -65° to 250° | 10 | 000000000 | 00000 |
| 5/8" | 0.035" | Acetal Plastic | White | 150 psi @ 72° F | -65° to 250° | 10 | 000000000 | 00000 |
Compression Fittings for Plastic Tubing—Chemicals
- For Use With: PFA Plastic: Hydrochloric Acid, Sulfuric Acid
PTFE Plastic: Alcohol, Ammonia, Benzoic Acid, Bleach, Bromine, Coolant, Fluoboric Acid, Hydrochloric Acid, Hydrofluoric Acid, Nitric Acid, Organic Solvents, Sodium Carbonate, Sulfuric Acid - Temperature Range: PFA Plastic: 0° to 350° F
PTFE Plastic: -40° to 185° F - Tubing: PFA Plastic: Use with hard (Durometer 50D-65D) PFA or PTFE plastic
PTFE Plastic: Use with hard (Durometer 60D) PFA or PTFE plastic
A sleeve (ferrule) compresses the tubing as you tighten the nut, creating a strong seal. The nut and sleeve are included. Fittings are also known as flareless fittings. Fittings that include a gripper sleeve on the tubing create an even tighter seal.
PFA fittings stand up to harsh substances. They’re made through a melting process. PTFE fittings are highly resistant to most acids, alcohols, detergents, and solvents. They’re made by machining. Their nut is made of PVDF, which is resistant to halogens such as chlorine and bromine, strong acids such as hydrofluoric and nitric acids, and organic solvents.
For technical drawings and 3-D models, click on a part number.
| For Tube OD (A) | For Tube OD (B) | Material | Color | Max. Pressure | Each | |
| 1/4" | 1/8" | PFA Plastic | White | 125 psi @ 72° F | 000000000 | 000000 |
| 3/8" | 1/4" | PFA Plastic | White | 125 psi @ 72° F | 000000000 | 000000 |
| 1/2" | 1/8" | PFA Plastic | White | 125 psi @ 72° F | 000000000 | 000000 |
| 1/2" | 1/4" | PFA Plastic | White | 125 psi @ 72° F | 000000000 | 000000 |
| 1/2" | 3/8" | PFA Plastic | White | 125 psi @ 72° F | 000000000 | 000000 |
| 3/4" | 1/2" | PFA Plastic | White | 125 psi @ 72° F | 000000000 | 000000 |
| 6mm | 4mm | PTFE Plastic | White | 100 psi @ 72° F | 000000000 | 00000 |
| 10mm | 6mm | PTFE Plastic | White | 100 psi @ 72° F | 000000000 | 00000 |
| 10mm | 8mm | PTFE Plastic | White | 100 psi @ 72° F | 000000000 | 00000 |
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.
For Tube (A) | For Tube (B) | ||||||
|---|---|---|---|---|---|---|---|
| OD | Wall Thick. | OD | Wall Thick. | Material | Max. Pressure | Each | |
| 1/4" | 0.035" | 1/8" | 0.035" | Brass | 1,200 psi @ 72° F | 00000000 | 000000 |
| 5/16" | 0.035" | 1/4" | 0.035" | Brass | 1,200 psi @ 72° F | 00000000 | 00000 |
| 3/8" | 0.035" | 1/4" | 0.035" | Brass | 1,000 psi @ 72° F | 00000000 | 00000 |
| 1/2" | 0.049" | 1/4" | 0.049" | Brass | 1,200 psi @ 72° F | 00000000 | 00000 |
| 1/2" | 0.049" | 3/8" | 0.049" | Brass | 1,200 psi @ 72° F | 00000000 | 00000 |
Compression Fittings for Copper Tubing
- For Use With: Air, Cutting Oil, Fuel Oil, Hydraulic Fluid, Mineral Oil, Water
- Temperature Range: See Table
- Tubing: Use with copper
- Specifications Met: See Table
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. They are brass for good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
For Tube (A) | For Tube (B) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| OD | Wall Thick. | OD | Wall Thick. | Material | Max. Pressure | Temp. Range, °F | Specifications Met | Each | |
| 1/4" | 0.03" | 3/16" | 0.03" | Brass | 1,400 psi @ 72° F | -65° to 250° | UL Listed | 00000000 | 000000 |
| 3/8" | 0.032" | 1/4" | 0.032" | Brass | 1,000 psi @ 72° F | -65° to 250° | UL Listed | 00000000 | 00000 |
| 1/2" | 0.032" | 3/8" | 0.032" | Brass | 750 psi @ 72° F | -65° to 250° | UL Listed | 00000000 | 00000 |
| 5/8" | 0.035" | 3/8" | 0.035" | Brass | 650 psi @ 72° F | -65° to 250° | UL Listed | 00000000 | 00000 |
For Tube | ||||||||
|---|---|---|---|---|---|---|---|---|
| OD | Wall Thick. | Nut Material | Max. Pressure | Temp. Range, °F | Lg. | Specifications Met | Each | |
Long Nuts | ||||||||
| 3/16" | 0.03" | Brass | 400 psi @ 72° F | -65° to 250° | 5/8" | UL Listed | 000000000 | 00000 |
| 1/4" | 0.03" | Brass | 300 psi @ 72° F | -65° to 250° | 3/4" | UL Listed | 000000000 | 0000 |
| 3/8" | 0.032" | Brass | 200 psi @ 72° F | -65° to 250° | 15/16" | UL Listed | 000000000 | 0000 |
| 1/2" | 0.032" | Brass | 200 psi @ 72° F | -65° to 250° | 1 1/16" | UL Listed | 000000000 | 00000 |
| 5/8" | 0.035" | Brass | 150 psi @ 72° F | -65° to 250° | 1 3/16" | UL Listed | 000000000 | 00000 |
For Tube | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Nut Style | OD | Wall Thick. | Nut Material | Sleeve Material | Max. Pressure | Temp. Range, °F | Lg. | Specifications Met | Each | |
| Short | 3/16" | 0.03" | Brass | Brass | 1,900 psi @ 72° F | -65° to 250° | 3/8" | UL Listed | 00000000 | 00000 |
| Short | 1/4" | 0.03" | Brass | Brass | 1,400 psi @ 72° F | -65° to 250° | 3/8" | UL Listed | 00000000 | 0000 |
| Short | 3/8" | 0.032" | Brass | Brass | 1,000 psi @ 72° F | -65° to 250° | 7/16" | UL Listed | 00000000 | 0000 |
| Short | 1/2" | 0.032" | Brass | Brass | 750 psi @ 72° F | -65° to 250° | 1/2" | UL Listed | 00000000 | 0000 |
| Short | 5/8" | 0.035" | Brass | Brass | 650 psi @ 72° F | -65° to 250° | 1/2" | UL Listed | 00000000 | 0000 |
For Tube | ||||||||
|---|---|---|---|---|---|---|---|---|
| OD | Wall Thick. | Sleeve Material | Max. Pressure | Temp. Range, °F | Specifications Met | Pkg. Qty. | Pkg. | |
| 3/16" | 0.03" | Brass | 400 psi @ 72° F | -65° to 200° | UL Listed | 10 | 000000000 | 00000 |
| 1/4" | 0.03" | Brass | 300 psi @ 72° F | -65° to 200° | UL Listed | 10 | 000000000 | 0000 |
| 3/8" | 0.032" | Brass | 200 psi @ 72° F | -65° to 200° | UL Listed | 10 | 000000000 | 0000 |
| 1/2" | 0.032" | Brass | 200 psi @ 72° F | -65° to 200° | UL Listed | 10 | 000000000 | 00000 |
| 5/8" | 0.035" | Brass | 150 psi @ 72° F | -65° to 200° | UL Listed | 10 | 000000000 | 00000 |
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.
For Tube (A) | For Tube (B) | ||||||
|---|---|---|---|---|---|---|---|
| OD | Wall Thick. | OD | Wall Thick. | Material | Max. Pressure | Each | |
| 3/16" | 0.035" | 1/8" | 0.035" | 316 Stainless Steel | 5,500 psi @ 72° F | 00000000 | 000000 |
| 1/4" | 0.035" | 1/8" | 0.035" | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 00000 |
| 5/16" | 0.035" | 1/4" | 0.035" | 316 Stainless Steel | 3,200 psi @ 72° F | 00000000 | 00000 |
| 3/8" | 0.035" | 1/8" | 0.035" | 316 Stainless Steel | 2,600 psi @ 72° F | 00000000 | 00000 |
| 3/8" | 0.035" | 1/4" | 0.035" | 316 Stainless Steel | 2,600 psi @ 72° F | 00000000 | 00000 |
| 1/2" | 0.035" | 1/4" | 0.035" | 316 Stainless Steel | 2,100 psi @ 72° F | 00000000 | 00000 |
| 1/2" | 0.035" | 3/8" | 0.035" | 316 Stainless Steel | 2,100 psi @ 72° F | 00000000 | 00000 |
| 3/4" | 0.049" | 1/2" | 0.049" | 316 Stainless Steel | 2,100 psi @ 72° F | 00000000 | 00000 |
For Tube | |||||
|---|---|---|---|---|---|
| OD | Wall Thick. | Nut Material | Max. Pressure | Each | |
| 1/8" | 0.035" | Molybdenum-Disulfide-Coated 316 Stainless Steel | 5,500 psi @ 72° F | 00000000 | 00000 |
| 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 |
| 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 | |
| 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 | 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 |
| 3/4" | 0.049" | 316 Stainless Steel | 2,100 psi @ 72° F | 00000000 | 00000 |
Vibration-Resistant Compression Fittings for Steel Tubing
- For Use With: Cutting Oil, Diesel Fuel
- Temperature Range: -30° to 250° F
- Tubing: Use with seamless steel
- Specifications Met: DIN 3861
The sleeve (ferrule) in these fittings is made of rubber instead of metal, so it cushions the tubing and absorbs vibration while creating a tight seal. Fittings are also known as flareless fittings. They are zinc-plated steel for fair corrosion resistance.
For technical drawings and 3-D models, click on a part number.
