Connection Style Connection Style |
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| Compression |
Material Material |
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System of Measurement System of Measurement |
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Shape Shape |
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 | Straight |
Type Type |
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 | Adapter |
For Tube Material For Tube Material |
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For Use With For Use With | Show |
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For Use With For Use With | Hide |
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Maximum Pressure Maximum Pressure |
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Length Length |
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Maximum Temperature Maximum Temperature |
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Minimum Temperature Minimum Temperature |
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Maximum Vacuum Maximum Vacuum |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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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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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.
For Tube | ||||||
|---|---|---|---|---|---|---|
| OD, mm | Wall Thickness, mm | Pipe Size | Material | Maximum Pressure | Each | |
BSPT Threads | ||||||
| 4 | 1 | 1/8 | Nickel-Plated Brass | 1,800 psi @ 72° F | 0000000 | 00000 |
| 6 | 1 | 1/8 | Nickel-Plated Brass | 2,500 psi @ 72° F | 0000000 | 0000 |
| 6 | 1 | 1/4 | Nickel-Plated Brass | 2,500 psi @ 72° F | 0000000 | 0000 |
| 8 | 1 | 1/8 | Nickel-Plated Brass | 2,100 psi @ 72° F | 0000000 | 0000 |
| 8 | 1 | 1/4 | Nickel-Plated Brass | 2,100 psi @ 72° F | 0000000 | 0000 |
| 8 | 1 | 3/8 | Nickel-Plated Brass | 2,100 psi @ 72° F | 0000000 | 0000 |
| 10 | 1 | 1/4 | Nickel-Plated Brass | 1,600 psi @ 72° F | 0000000 | 0000 |
| 10 | 1 | 3/8 | Nickel-Plated Brass | 1,600 psi @ 72° F | 0000000 | 0000 |
| 12 | 1 | 3/8 | Nickel-Plated Brass | 1,000 psi @ 72° F | 0000000 | 0000 |
| 12 | 1 | 1/2 | Nickel-Plated Brass | 1,000 psi @ 72° F | 0000000 | 0000 |
| 14 | 1 | 1/2 | Nickel-Plated Brass | 1,000 psi @ 72° F | 0000000 | 0000 |
| 15 | 1 | 1/2 | Nickel-Plated Brass | 1,000 psi @ 72° F | 0000000 | 0000 |
| 16 | 1 | 1/2 | Nickel-Plated Brass | 1,000 psi @ 72° F | 00000000 | 0000 |
| 18 | 1 | 1/2 | Nickel-Plated Brass | 900 psi @ 72° F | 00000000 | 00000 |
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 |
| 14 | 1 | Nickel-Plated Brass | 1,000 psi @ 72° F | 19 | 00000000 | 0000 |
| 15 | 1 | Nickel-Plated Brass | 1,000 psi @ 72° F | 17 | 00000000 | 0000 |
For Tube | |||||
|---|---|---|---|---|---|
| OD, mm | Wall Thickness, mm | Sleeve Material | Maximum Pressure | Each | |
| 4 | 1 | Brass | 1,800 psi @ 72° F | 00000000 | 00000 |
| 6 | 1 | Brass | 2,500 psi @ 72° F | 00000000 | 000 |
| 8 | 1 | Brass | 2,100 psi @ 72° F | 00000000 | 000 |
| 10 | 1 | Brass | 1,600 psi @ 72° F | 00000000 | 000 |
| 12 | 1 | Brass | 1,000 psi @ 72° F | 00000000 | 000 |
| 14 | 1 | Brass | 1,000 psi @ 72° F | 00000000 | 000 |
| 15 | 1 | Brass | 1,000 psi @ 72° F | 00000000 | 000 |
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.
Fittings with tube stem insert into the tube end of another fitting in place of a length of tubing.
| Tube Stem OD | Pipe Size | Material | Max. Pressure | Each | |
| 1/8" | 1/8 | 316 Stainless Steel | 5,500 psi @ 72° F | 00000000 | 000000 |
| 1/8" | 1/4 | 316 Stainless Steel | 5,500 psi @ 72° F | 00000000 | 00000 |
| 1/4" | 1/8 | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 00000 |
| 1/4" | 1/4 | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 00000 |
| 1/4" | 3/8 | 316 Stainless Steel | 4,000 psi @ 72° F | 00000000 | 00000 |
| 3/8" | 1/4 | 316 Stainless Steel | 2,600 psi @ 72° F | 00000000 | 00000 |
| 3/8" | 3/8 | 316 Stainless Steel | 2,600 psi @ 72° F | 00000000 | 00000 |
| 3/8" | 1/2 | 316 Stainless Steel | 2,600 psi @ 72° F | 00000000 | 00000 |
| 1/2" | 3/8 | 316 Stainless Steel | 2,100 psi @ 72° F | 00000000 | 00000 |
| 1/2" | 1/2 | 316 Stainless Steel | 2,100 psi @ 72° F | 00000000 | 00000 |
| 3/4" | 3/4 | 316 Stainless Steel | 2,100 psi @ 72° F | 00000000 | 00000 |