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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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Sleeves for Compression Fittings for Copper Tubing

- For Use With: Air, Cutting Oil, Fuel Oil, Hydraulic Fluid, Mineral Oil, Water
- Temperature Range:
Inch: -65° to 200° F
Metric: -40° to 250° F - Tubing:
Inch: Use with firm or hard (Durometer 1A-95A) nylon plastic, polyethylene plastic, polypropylene plastic, polyurethane rubber, or copper
Metric: Use with copper - Specifications Met: UL listed, except for metric fittings
Use these sleeves with compression nuts and fittings to create a strong seal on copper tubing. They are brass for good corrosion resistance. They are also known as ferrules.
Sleeves for 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
Use these sleeves with brass compression nuts and fittings to create a seal on plastic and rubber tubing.
Brass sleeves work best with nylon tubing. When using these sleeves with soft tubing such as polyethylene, polypropylene, and polyurethane tubing, you should use a tube support (not included).
For Tube | Sleeve | |||||
---|---|---|---|---|---|---|
OD | Wall Thick. | Material | Max. Pressure | Temp. Range, °F | Each | |
6mm | 1mm | Brass | 2100 psi @ 72° F | -75° to 550° | 0000000 | 00000 |