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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O-Rings for Brass Compression Tube Fittings for Air and Water
- For Use With: Air, Lubricated Air, Water
- Temperature Range: -20° to 212° F
Use these O-rings with brass compression tube fittings that have BSPP male threads. They create a seal on the BSPP male threads to guard against leaks.
| For Pipe Size  | For Thread Type | For Gender | O-Ring Material | Max. Pressure | Each | |
| 1/8 | BSPP | Male | Buna-N Rubber, Steel | 2100 psi @ 72 ° F | 000000000 | 00000 |
| 1/4 | BSPP | Male | Buna-N Rubber, Steel | 2100 psi @ 72 ° F | 000000000 | 0000 |
| 3/8 | BSPP | Male | Buna-N Rubber, Steel | 1900 psi @ 72 ° F | 000000000 | 0000 |
| 1/2 | BSPP | Male | Buna-N Rubber, Steel | 1400 psi @ 72 ° F | 000000000 | 0000 |
| 3/4 | BSPP | Male | Buna-N Rubber, Steel | 1000 psi @ 72 ° F | 000000000 | 0000 |
| 1 | BSPP | Male | Buna-N Rubber, Steel | 1000 psi @ 72 ° F | 000000000 | 0000 |
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.
Use tube supports (sold separately) when attaching fittings to plastic and rubber tubing to prevent the tube from collapsing.
- Temperature Range:
Inch: -65° to 250° F
Metric: -40° to 250° F - Tubing:
Tube supports with 135 psi @ 75° F or 165 psi @ 75° F max. pressures: Use with firm or soft polyethylene plastic or PVC plastic
Tube supports with all other max. pressures: Use with firm or soft (Durometer 1A-95A) polyethylene plastic or polypropylene plastic
- Temperature Range: -75° to 550° F
- Tubing: Use with hard or firm (Rockwell 15T 1-15T 60) nylon plastic, polyethylene plastic, polypropylene plastic, or polyurethane rubber
- For Use With:
Short nuts: Air, Water, Lubricated Air
Long nuts: Air, Water, Cutting Oil, Fuel Oil, Hydraulic Fluid, Mineral Oil - Temperature Range: See table
- Tubing:
Short nuts: Use with firm or hard (Durometer 1A-95A or Rockwell 15T 1-15T 60) nylon plastic, polyethylene plastic, polypropylene plastic, or polyurethane rubber
Long nuts: Use with firm or hard (Durometer 1A-95A) copper, nylon plastic, polyethylene plastic, polypropylene plastic, or polyurethane rubber - Specifications Met: See table
- For Use With:
UL Listed sleeves: Air, Water, Cutting Oil, Fuel Oil, Hydraulic Fluid, Mineral Oil
All other sleeves: Air, Water, Lubricated Air - Temperature Range: See table
- Tubing:
UL Listed sleeves: Use with firm or hard (Durometer 1A-95A) copper, nylon plastic, polyethylene plastic, polypropylene plastic, or polyurethane rubber
All other sleeves: 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: See table
Nuts 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 nuts with brass compression sleeves and fittings to create a seal on plastic and rubber tubing. They are brass for good corrosion resistance.
For Tube | ||||||
|---|---|---|---|---|---|---|
| OD | Wall Thick. | Nut Material | Max. Pressure | Temp. Range, °F | Each | |
| 1/8" | 0.03" | Brass | 400 psi @ 72° F | -65° to 250° | 000000000 | 00000 |
| 3/16" | 0.03" | Brass | 400 psi @ 72° F | -65° to 250° | 000000000 | 0000 |
| 1/4" | 0.03" | Brass | 300 psi @ 72° F | -65° to 250° | 000000000 | 0000 |
| 5/16" | 0.032" | Brass | 300 psi @ 72° F | -65° to 250° | 000000000 | 0000 |
| 3/8" | 0.032" | Brass | 200 psi @ 72° F | -65° to 250° | 000000000 | 0000 |
| 7/16" | 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 |
| 3/4" | 0.035" | Brass | 100 psi @ 72° F | -65° to 250° | 000000000 | 0000 |
| 7/8" | 0.035" | Brass | 75 psi @ 72° F | -65° to 250° | 000000000 | 00000 |
| 4mm | 1mm | Brass | 2100 psi @ 72° F | -75° to 550° | 00000000 | 000 |
| 6mm | 1mm | Brass | 2100 psi @ 72° F | -75° to 550° | 0000000 | 000 |
| 8mm | 1mm | Brass | 1900 psi @ 72° F | -75° to 550° | 00000000 | 000 |
| 10mm | 1mm | Brass | 1300 psi @ 72° F | -75° to 550° | 00000000 | 0000 |
| 12mm | 1mm | Brass | 1000 psi @ 72° F | -75° to 550° | 00000000 | 0000 |
| 14mm | 1mm | Brass | 1400 psi @ 72° F | -75° to 550° | 00000000 | 0000 |
| 15mm | 1mm | Brass | 1300 psi @ 72° F | -75° to 550° | 00000000 | 0000 |
| 16mm | 1mm | Brass | 1300 psi @ 72° F | -75° to 550° | 00000000 | 0000 |
| 18mm | 1mm | Brass | 1000 psi @ 72° F | -75° to 550° | 00000000 | 0000 |
| 22mm | 1mm | Brass | 1000 psi @ 72° F | -75° to 550° | 00000000 | 0000 |
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).
Tube Supports for Brass Compression Tube Fittings for Air and Water
Use these sleeves with brass compression nuts and fittings to create a seal on plastic and rubber tubing. They are brass, so they won’t damage tubing.
- Temperature Range:
Inch: -65° to 250° F
Metric: -40° to 250° F - Tubing:
Tube supports with 135 psi @ 75° F or 165 psi @ 75° F max. pressures: Use with firm or soft polyethylene plastic or PVC plastic
Tube supports with all other max. pressures: Use with firm or soft (Durometer 1A-95A) polyethylene plastic or polypropylene plastic
- Temperature Range: -75° to 550° F
- Tubing: Use with hard or firm (Rockwell 15T 1-15T 60) nylon plastic, polyethylene plastic, polypropylene plastic, or polyurethane rubber
Nuts with Built-In Sleeve for Plastic Compression Tube Fittings for Air
- For Use With: Air, Lubricated Air
- Temperature Range: -30° to 210° F
- Tubing: Use with firm or hard nylon plastic, polyethylene plastic or polypropylene plastic
Use these nuts with plastic compression fittings to create a seal on plastic tubing. They have a built-in sleeve (ferrule), so the sleeve is positioned correctly for installation. Thread the nut onto the fitting, then insert the tubing and tighten the nut. Nuts are polypropylene, which has excellent impact and abrasion resistance.
Nut | Sleeve | |||||||
|---|---|---|---|---|---|---|---|---|
| For Tube OD | Material | Color | Material | Color | Max. Pressure | Pkg. Qty. | Pkg. | |
| 1/4" | Polypropylene Plastic | White | Polypropylene Plastic | White | 220 psi @ 72° F | 10 | 00000000 | 00000 |
| 5/16" | Polypropylene Plastic | White | Polypropylene Plastic | White | 220 psi @ 72° F | 10 | 00000000 | 0000 |
| 3/8" | Polypropylene Plastic | White | Polypropylene Plastic | White | 220 psi @ 72° F | 10 | 00000000 | 0000 |
| 1/2" | Polypropylene Plastic | White | Polypropylene Plastic | White | 220 psi @ 72° F | 10 | 00000000 | 0000 |
| 5/8" | Polypropylene Plastic | White | Polypropylene Plastic | White | 220 psi @ 72° F | 10 | 00000000 | 0000 |
| 3/4" | Polypropylene Plastic | White | Polypropylene Plastic | White | 220 psi @ 72° F | 5 | 00000000 | 0000 |