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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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45° Flared Fittings for Copper and Brass Tubing
- For Use With: Air, Cutting Oil, Diesel Fuel, Fuel Oil, Mineral Oil, Refrigerant, Water
- Temperature Range: -65° to 250° F
- Tubing: Use with seamless brass and copper that meets ASTM B280
- Specifications Met: SAE J512, SAE J513, UL Listed, except socket-connect fittings and fittings with BSPT thread meet SAE J512 and SAE J513 only
No sleeve is required to assemble these fittings, which makes for a faster, more convenient installation compared to 37° flared fittings. They require a nut (sold separately) for each tube end. Fittings are also known as refrigeration and SAE fittings. They are brass for good corrosion resistance.
NPTF (Dryseal) threads are compatible with NPT threads.
Copper tube size is the accepted designation of the copper tubing industry, not the actual tube OD.
For technical drawings and 3-D models, click on a part number.
Straight Adapters, Tube × Male Threaded Pipe
For Tube | ||||||
|---|---|---|---|---|---|---|
| OD | Wall Thick. | Pipe Size | Material | Max. Pressure | Each | |
NPTF Threads | ||||||
| 3/16" | 0.03" | 1/8 | Brass | 1,900 psi @ 72° F | 000000000 | 00000 |
| 3/16" | 0.03" | 1/4 | Brass | 1,900 psi @ 72° F | 000000000 | 0000 |
| 1/4" | 0.03" | 1/8 | Brass | 1,400 psi @ 72° F | 000000000 | 0000 |
| 1/4" | 0.03" | 1/4 | Brass | 1,400 psi @ 72° F | 000000000 | 0000 |
| 1/4" | 0.03" | 3/8 | Brass | 1,400 psi @ 72° F | 000000000 | 0000 |
| 1/4" | 0.03" | 1/2 | Brass | 1,400 psi @ 72° F | 000000000 | 0000 |
| 5/16" | 0.032" | 1/8 | Brass | 1,200 psi @ 72° F | 000000000 | 0000 |
| 5/16" | 0.032" | 1/4 | Brass | 1,200 psi @ 72° F | 000000000 | 0000 |
| 3/8" | 0.032" | 1/8 | Brass | 1,000 psi @ 72° F | 000000000 | 0000 |
| 3/8" | 0.032" | 1/4 | Brass | 1,000 psi @ 72° F | 000000000 | 0000 |
| 3/8" | 0.032" | 3/8 | Brass | 1,000 psi @ 72° F | 000000000 | 0000 |
| 3/8" | 0.032" | 1/2 | Brass | 1,000 psi @ 72° F | 000000000 | 0000 |
| 3/8" | 0.032" | 3/4 | Brass | 1,000 psi @ 72° F | 000000000 | 0000 |
| 1/2" | 0.032" | 1/4 | Brass | 750 psi @ 72° F | 000000000 | 0000 |
| 1/2" | 0.032" | 3/8 | Brass | 750 psi @ 72° F | 000000000 | 0000 |
| 1/2" | 0.032" | 1/2 | Brass | 750 psi @ 72° F | 000000000 | 0000 |
| 1/2" | 0.032" | 3/4 | Brass | 750 psi @ 72° F | 000000000 | 0000 |
| 5/8" | 0.035" | 1/4 | Brass | 650 psi @ 72° F | 000000000 | 00000 |
| 5/8" | 0.035" | 3/8 | Brass | 650 psi @ 72° F | 000000000 | 0000 |
| 5/8" | 0.035" | 1/2 | Brass | 650 psi @ 72° F | 000000000 | 0000 |
| 5/8" | 0.035" | 3/4 | Brass | 650 psi @ 72° F | 000000000 | 0000 |
| 3/4" | 0.035" | 1/2 | Brass | 550 psi @ 72° F | 000000000 | 00000 |
| 3/4" | 0.035" | 3/4 | Brass | 550 psi @ 72° F | 000000000 | 00000 |
BSPT Threads | ||||||
| 1/4" | 0.03" | 1/8 | Brass | 1,400 psi @ 72° F | 000000000 | 0000 |
| 1/4" | 0.03" | 1/4 | Brass | 1,400 psi @ 72° F | 000000000 | 0000 |
| 1/4" | 0.03" | 3/8 | Brass | 1,400 psi @ 72° F | 00000000 | 0000 |
| 1/4" | 0.03" | 1/2 | Brass | 1,400 psi @ 72° F | 000000000 | 00000 |
| 3/8" | 0.032" | 1/8 | Brass | 1,000 psi @ 72° F | 00000000 | 0000 |
| 3/8" | 0.032" | 1/4 | Brass | 1,000 psi @ 72° F | 000000000 | 0000 |
| 3/8" | 0.032" | 3/8 | Brass | 1,000 psi @ 72° F | 000000000 | 0000 |
| 3/8" | 0.032" | 1/2 | Brass | 1,000 psi @ 72° F | 000000000 | 00000 |
| 3/8" | 0.032" | 3/4 | Brass | 1,000 psi @ 72° F | 00000000 | 00000 |
| 1/2" | 0.032" | 1/4 | Brass | 750 psi @ 72° F | 000000000 | 0000 |
| 1/2" | 0.032" | 3/8 | Brass | 750 psi @ 72° F | 000000000 | 0000 |
| 1/2" | 0.032" | 1/2 | Brass | 750 psi @ 72° F | 00000000 | 0000 |
| 1/2" | 0.032" | 3/4 | Brass | 750 psi @ 72° F | 000000000 | 00000 |
| 5/8" | 0.035" | 1/4 | Brass | 650 psi @ 72° F | 000000000 | 00000 |
| 5/8" | 0.035" | 3/8 | Brass | 650 psi @ 72° F | 000000000 | 00000 |
| 5/8" | 0.035" | 1/2 | Brass | 650 psi @ 72° F | 000000000 | 00000 |
| 5/8" | 0.035" | 3/4 | Brass | 650 psi @ 72° F | 000000000 | 00000 |
Straight Adapters, Tube × Female Threaded Pipe
For Tube | ||||||
|---|---|---|---|---|---|---|
| OD | Wall Thick. | Pipe Size | Material | Max. Pressure | Each | |
NPTF Threads | ||||||
| 3/16" | 0.03" | 1/8 | Brass | 1,900 psi @ 72° F | 000000000 | 00000 |
| 1/4" | 0.03" | 1/8 | Brass | 1,400 psi @ 72° F | 000000000 | 0000 |
| 1/4" | 0.03" | 1/4 | Brass | 1,400 psi @ 72° F | 000000000 | 0000 |
| 1/4" | 0.03" | 3/8 | Brass | 1,400 psi @ 72° F | 000000000 | 0000 |
| 1/4" | 0.03" | 1/2 | Brass | 1,400 psi @ 72° F | 000000000 | 00000 |
| 5/16" | 0.032" | 1/8 | Brass | 1,200 psi @ 72° F | 000000000 | 0000 |
| 5/16" | 0.032" | 1/4 | Brass | 1,200 psi @ 72° F | 000000000 | 0000 |
| 3/8" | 0.032" | 1/4 | Brass | 1,000 psi @ 72° F | 000000000 | 0000 |
| 3/8" | 0.032" | 3/8 | Brass | 1,000 psi @ 72° F | 000000000 | 0000 |
| 3/8" | 0.032" | 1/2 | Brass | 1,000 psi @ 72° F | 000000000 | 0000 |
| 3/8" | 0.032" | 3/4 | Brass | 1,000 psi @ 72° F | 000000000 | 00000 |
| 1/2" | 0.032" | 1/4 | Brass | 750 psi @ 72° F | 000000000 | 0000 |
| 1/2" | 0.032" | 3/8 | Brass | 750 psi @ 72° F | 000000000 | 0000 |
| 1/2" | 0.032" | 1/2 | Brass | 750 psi @ 72° F | 000000000 | 0000 |
| 1/2" | 0.032" | 3/4 | Brass | 750 psi @ 72° F | 000000000 | 00000 |
BSPT Threads | ||||||
| 1/4" | 0.03" | 1/8 | Brass | 1,400 psi @ 72° F | 000000000 | 0000 |
| 1/4" | 0.03" | 1/4 | Brass | 1,400 psi @ 72° F | 000000000 | 0000 |
| 3/8" | 0.032" | 1/8 | Brass | 1,000 psi @ 72° F | 000000000 | 00000 |
| 3/8" | 0.032" | 1/4 | Brass | 1,000 psi @ 72° F | 000000000 | 0000 |
| 3/8" | 0.032" | 3/8 | Brass | 1,000 psi @ 72° F | 000000000 | 00000 |
| 1/2" | 0.032" | 1/4 | Brass | 750 psi @ 72° F | 000000000 | 00000 |
| 1/2" | 0.032" | 3/8 | Brass | 750 psi @ 72° F | 000000000 | 00000 |
| 1/2" | 0.032" | 1/2 | Brass | 750 psi @ 72° F | 000000000 | 00000 |
Straight Adapters, Tube × Female Socket-Connect Tube
For Tube | Socket Connection | ||||||
|---|---|---|---|---|---|---|---|
| OD | Wall Thick. | Copper Tube Size | For Tube OD | Material | Max. Pressure | Each | |
| 1/4" | 0.03" | 1/8 | 1/4" | Brass | 1,400 psi @ 72° F | 000000000 | 00000 |
| 3/8" | 0.032" | 1/4 | 3/8" | Brass | 1,000 psi @ 72° F | 000000000 | 0000 |
| 1/2" | 0.032" | 3/8 | 1/2" | Brass | 750 psi @ 72° F | 000000000 | 0000 |
| 5/8" | 0.035" | 1/2 | 5/8" | Brass | 650 psi @ 72° F | 000000000 | 00000 |
| 3/4" | 0.035" | 5/8 | 3/4" | Brass | 550 psi @ 72° F | 000000000 | 00000 |
Straight Connectors, Tube
For Tube | |||||
|---|---|---|---|---|---|
| OD | Wall Thick. | Material | Max. Pressure | Each | |
| 3/16" | 0.03" | Brass | 1,900 psi @ 72° F | 000000000 | 00000 |
| 1/4" | 0.03" | Brass | 1,400 psi @ 72° F | 000000000 | 0000 |
| 5/16" | 0.032" | Brass | 1,200 psi @ 72° F | 000000000 | 0000 |
| 3/8" | 0.032" | Brass | 1,000 psi @ 72° F | 000000000 | 0000 |
| 1/2" | 0.032" | Brass | 750 psi @ 72° F | 000000000 | 0000 |
| 5/8" | 0.035" | Brass | 650 psi @ 72° F | 000000000 | 0000 |
| 3/4" | 0.035" | Brass | 550 psi @ 72° F | 000000000 | 00000 |
Straight Reducers, Tube
For Tube (A) | For Tube (B) | ||||||
|---|---|---|---|---|---|---|---|
| OD | Wall Thick. | OD | Wall Thick. | Material | Max. Pressure | Each | |
| 3/8" | 0.032" | 1/4" | 0.03" | Brass | 1,000 psi @ 72° F | 000000000 | 00000 |
| 3/8" | 0.032" | 5/16" | 0.032" | Brass | 1,000 psi @ 72° F | 000000000 | 0000 |
| 1/2" | 0.032" | 1/4" | 0.03" | Brass | 750 psi @ 72° F | 000000000 | 00000 |
| 1/2" | 0.032" | 3/8" | 0.032" | Brass | 750 psi @ 72° F | 000000000 | 00000 |
| 5/8" | 0.035" | 3/8" | 0.032" | Brass | 650 psi @ 72° F | 000000000 | 00000 |
| 5/8" | 0.035" | 1/2" | 0.032" | Brass | 650 psi @ 72° F | 000000000 | 00000 |
Nuts
Short Nut
Long Nut
For Tube | ||||||
|---|---|---|---|---|---|---|
| OD | Wall Thick. | Nut Material | Max. Pressure | Lg. | Each | |
Short Nuts | ||||||
| 3/16" | 0.035" | Brass | 1,900 psi @ 72° F | 5/8" | 000000000 | 00000 |
| 1/4" | 0.049" | Brass | 1,400 psi @ 72° F | 3/4" | 000000000 | 0000 |
| 5/16" | 0.049" | Brass | 1,200 psi @ 72° F | 7/8" | 000000000 | 0000 |
| 3/8" | 0.065" | Brass | 1,000 psi @ 72° F | 1" | 000000000 | 0000 |
| 1/2" | 0.083" | Brass | 750 psi @ 72° F | 1 1/8" | 000000000 | 0000 |
| 5/8" | 0.095" | Brass | 650 psi @ 72° F | 1 5/16" | 000000000 | 0000 |
| 3/4" | 0.109" | Brass | 550 psi @ 72° F | 1 1/2" | 000000000 | 00000 |
Long Nuts | ||||||
| 3/16" | 0.035" | Brass | 1,900 psi @ 72° F | 13/16" | 000000000 | 0000 |
| 1/4" | 0.049" | Brass | 1,400 psi @ 72° F | 15/16" | 000000000 | 0000 |
| 5/16" | 0.049" | Brass | 1,200 psi @ 72° F | 1 1/8" | 000000000 | 0000 |
| 3/8" | 0.065" | Brass | 1,000 psi @ 72° F | 1 5/16" | 000000000 | 0000 |
| 1/2" | 0.083" | Brass | 750 psi @ 72° F | 1 5/8" | 000000000 | 0000 |
| 5/8" | 0.095" | Brass | 650 psi @ 72° F | 1 7/8" | 000000000 | 00000 |
| 3/4" | 0.109" | Brass | 550 psi @ 72° F | 2 3/16" | 000000000 | 00000 |
Supported 45° Flared Fittings for Copper and Brass Tubing
- For Use With: Air, Cutting Oil, Diesel Fuel, Fuel Oil, Mineral Oil, Refrigerant, Water
- Temperature Range: -65° to 250° F
- Tubing: Use with seamless brass and copper
- Specifications Met:
Metric: SAE J512, SAE J513, UL Listed
All other fittings: SAE J512, UL Listed; except tee connectors for 1/2" tube OD
The flared end nests inside the fitting body, providing extra support to the tubing. Fittings are also known as inverted 45° flared fittings, refrigeration fittings, and SAE fittings. To assemble, place the nut (sold separately) on the tubing, flare the end of the tubing, then insert the tubing into the fitting and tighten the nut. Fittings are brass for good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
37° Flared Fittings for Copper Tubing
- For Use With: Air, Fuel Oil, Mineral Oil, Water
- Temperature Range: -40° to 400° F
- Tubing: Use with seamless copper
- Specifications Met: ISO 8434, JIC, MIL-F-18866, SAE J514
Also known as JIC (Joint Industrial Council) fittings, these provide a tight metal-to-metal seal on tubing that is flared to 37°. They can handle higher pressures than 45° flared fittings. Fittings are brass for good corrosion resistance. They require a nut and a sleeve (ferrule) for each tube end. Nuts and sleeves are sold separately.
For technical drawings and 3-D models, click on a part number.
Straight Adapters, Tube × Male Threaded Pipe
| For Tube OD | Pipe Size | Material | Max. Pressure | Each | |
NPT Threads | |||||
|---|---|---|---|---|---|
| 1/4" | 1/8 | 360 Brass | 3,200 psi @ 72° F | 000000000 | 00000 |
| 1/4" | 1/4 | 360 Brass | 3,200 psi @ 72° F | 000000000 | 0000 |
| 3/8" | 1/4 | 360 Brass | 3,200 psi @ 72° F | 000000000 | 0000 |
| 3/8" | 3/8 | 360 Brass | 3,200 psi @ 72° F | 000000000 | 0000 |
| 1/2" | 3/8 | 360 Brass | 3,200 psi @ 72° F | 000000000 | 0000 |
| 1/2" | 1/2 | 360 Brass | 3,200 psi @ 72° F | 000000000 | 0000 |
| 3/4" | 3/4 | 360 Brass | 2,600 psi @ 72° F | 000000000 | 00000 |
| 1" | 1 | 360 Brass | 1,900 psi @ 72° F | 000000000 | 00000 |
| 6mm | 1/8 | 360 Brass | 3,300 psi @ 72° F | 00000000 | 0000 |
| 8mm | 1/8 | 360 Brass | 3,300 psi @ 72° F | 000000000 | 0000 |
| 10mm | 1/4 | 360 Brass | 3,300 psi @ 72° F | 000000000 | 0000 |
| 12mm | 3/8 | 360 Brass | 3,300 psi @ 72° F | 000000000 | 00000 |
| 16mm | 1/2 | 360 Brass | 3,300 psi @ 72° F | 00000000 | 00000 |
| 18mm | 3/4 | 360 Brass | 2,300 psi @ 72° F | 000000000 | 00000 |
| 25mm | 1 | 360 Brass | 2,300 psi @ 72° F | 000000000 | 00000 |
Straight Adapters, Tube × Female Threaded Pipe
| For Tube OD | Pipe Size | Material | Max. Pressure | Each | |
NPT Threads | |||||
|---|---|---|---|---|---|
| 1/4" | 1/8 | 360 Brass | 3,200 psi @ 72° F | 000000000 | 00000 |
| 1/4" | 1/4 | 360 Brass | 3,200 psi @ 72° F | 000000000 | 0000 |
| 3/8" | 1/4 | 360 Brass | 3,200 psi @ 72° F | 000000000 | 0000 |
| 3/8" | 3/8 | 360 Brass | 3,200 psi @ 72° F | 000000000 | 0000 |
| 1/2" | 3/8 | 360 Brass | 3,200 psi @ 72° F | 000000000 | 0000 |
| 1/2" | 1/2 | 360 Brass | 3,200 psi @ 72° F | 000000000 | 00000 |
| 3/4" | 3/4 | 360 Brass | 2,600 psi @ 72° F | 000000000 | 00000 |
| 1" | 1 | 360 Brass | 1,900 psi @ 72° F | 000000000 | 00000 |
Straight Connectors, Tube
| For Tube OD | Lg. | Material | Max. Pressure | Each | |
| 1/8" | 1 11/64" | 360 Brass | 3,300 psi @ 72° F | 000000000 | 00000 |
| 1/8" | 1 7/8" | 360 Brass | 3,300 psi @ 72° F | 00000000 | 0000 |
| 3/16" | 1 15/64" | 360 Brass | 3,300 psi @ 72° F | 00000000 | 0000 |
| 3/16" | 1 29/32" | 360 Brass | 3,300 psi @ 72° F | 0000000 | 0000 |
| 1/4" | 1 3/8" | 360 Brass | 3,200 psi @ 72° F | 000000000 | 0000 |
| 1/4" | 2 5/64" | 360 Brass | 3,300 psi @ 72° F | 000000000 | 0000 |
| 5/16" | 1 3/8" | 360 Brass | 3,300 psi @ 72° F | 000000000 | 0000 |
| 5/16" | 2 5/64" | 360 Brass | 3,300 psi @ 72° F | 000000000 | 00000 |
| 3/8" | 1 13/32" | 360 Brass | 3,200 psi @ 72° F | 000000000 | 0000 |
| 3/8" | 2 3/16" | 360 Brass | 3,300 psi @ 72° F | 000000000 | 00000 |
| 1/2" | 1 5/8" | 360 Brass | 3,200 psi @ 72° F | 000000000 | 0000 |
| 1/2" | 2 29/64" | 360 Brass | 3,300 psi @ 72° F | 00000000 | 00000 |
| 5/8" | 1 57/64" | 360 Brass | 3,300 psi @ 72° F | 000000000 | 00000 |
| 3/4" | 2 5/32" | 360 Brass | 3,200 psi @ 72° F | 000000000 | 00000 |
| 7/8" | 2 13/64" | 360 Brass | 2,600 psi @ 72° F | 000000000 | 00000 |
| 1" | 2 1/4" | 360 Brass | 2,600 psi @ 72° F | 000000000 | 00000 |
