System of Measurement System of Measurement |
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Thread Size Thread Size | Show |
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Thread Size Thread Size | Hide |
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Thread Type Thread Type |
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Pipe Size Pipe Size |
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Dash Size Dash Size |
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Material Material |
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Shape Shape |
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![]() | Straight |
For Use With For Use With |
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For Tube Material For Tube Material |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Maximum Pressure Maximum Pressure |
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Finish Finish |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Flared Angle Flared Angle |
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Nut Material Nut Material |
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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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Compact Extreme-Pressure Steel Threaded Pipe Fittings
These fittings are strong enough to handle extreme pressures, yet small enough to fit into cramped spaces. They are galvanized steel, which has fair corrosion resistance. UN/UNF (SAE Straight) threads are also known as O-ring boss threads; the male threads have either a gasket or a gasket and washer to prevent leaks.
For technical drawings and 3-D models, click on a part number.


(SAE Straight) Male
Threads with Gasket
- For Use With: See table
- Specifications Met:
NPTF and UN/UNF (SAE Straight): ASTM A108
BSPP: ISO 1179, ISO 8434-6
BSPT: DIN EN 10226-1, ISO 7-1
Thread Size | Dash Size | Max. Pressure | For Use With | Each | |
UN/UNF (SAE Straight) Male | |||||
---|---|---|---|---|---|
2 1/2"-12 | 32 | 2,000 psi @ 72° F | Air, Hydraulic Fluid, Water | 000000000 | 0000000 |
37° Flared Fittings for Stainless Steel Tubing

- Tubing: Use with welded or seamless 304 or 316 stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
- Specifications Met: ISO 8434, SAE J514, except fittings with BSPP and BSPT threads meet SAE J514 only
Also known as JIC (Joint Industrial Council) fittings, these provide a tight metal-to-metal seal on tubing that is flared to 37°. They are 316 stainless steel for excellent corrosion resistance. Fittings 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.

- For Use With: See table
- Temperature Range: See table
For Tube OD | Pipe Size | For Use With | Material | Max. Pressure | Temp. Range, ° F | Each | |
NPT Threads | |||||||
---|---|---|---|---|---|---|---|
2" | 2 | Air, Hydraulic Fluid, Isopropyl Alcohol, Natural Gas, Phosphoric Acid, Water | 316 Stainless Steel | 1,500 psi @ 72° F | -420 to 1200° | 000000000 | 0000000 |

- For Use With: Air, Hydraulic Fluid, Isopropyl Alcohol, Natural Gas, Phosphoric Acid, Water
- Temperature Range: -420° to 1,200° F
For Tube OD | Nut Material | Each | |
2" | 316 Stainless Steel | 000000000 | 0000000 |

- For Use With: Air, Hydraulic Fluid, Isopropyl Alcohol, Natural Gas, Phosphoric Acid, Water
- Temperature Range: -420° to 1,200° F
Use these sleeves with a nut and fitting to provide a tight metal-to-metal seal on stainless steel tubing that is flared to 37°. Sleeves are 316 stainless steel for excellent corrosion resistance. They are also known as ferrules.
For Tube OD | |||
---|---|---|---|
Inch | Sleeve Material | Each | |
Inch | |||
2" | 316 Stainless Steel | 000000000 | 0000000 |
Nuts for 37° Flared Fittings for Stainless Steel Tubing

- For Use With: Air, Hydraulic Fluid, Isopropyl Alcohol, Natural Gas, Phosphoric Acid, Water
- Temperature Range: -420° to 1,200° F
- Tubing: Use with seamless or welded 304 or 316 stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
- Specifications Met: ISO 8434, SAE J514
Use these nuts with a sleeve and fitting to provide a tight metal-to-metal seal on stainless steel tubing that is flared to 37°. Nuts are 316 stainless steel for excellent corrosion resistance.
For technical drawings and 3-D models, click on a part number.
For Tube OD | Nut Material | Each | |
2" | 316 Stainless Steel | 000000000 | 0000000 |
Precision AN 37° Flared Fittings for Stainless Steel Tubing

- For Use With: Air, Cutting Oil, Fuel Oil, Hydraulic Fluid, Mineral Oil, Water
- Temperature Range: -320° to 1200° F
- Tubing: Use with seamless 304 or 316 stainless steel
- Specifications Met: See Table
The threads on the tube end of these fittings are Class 3A or 3B and adhere to tighter tolerances than other 37° flared fittings. They are made to exact AS (formerly AN) specifications and provide a tight metal-to-metal seal on tubing that is flared to 37°. Fittings require a nut and a sleeve (ferrule) for each tube end. Nuts and sleeves are sold separately.
304 stainless steel fittings have very good corrosion resistance.
For technical drawings and 3-D models, click on a part number.

304 Stainless Steel | |||||
---|---|---|---|---|---|
For Tube OD | Pipe Size | Max. Pressure | Specifications Met | Each | |
ANPT Threads | |||||
2" | 2 | 1,500 psi @ 72° F | AN816-32J, ASTM A380, SAE AS4841 | 00000000 | 0000000 |

304 Stainless Steel | ||||
---|---|---|---|---|
For Tube OD | Max. Pressure | Specifications Met | Each | |
2" | 1,500 psi @ 72° F | AN818-32J, ASTM A380, SAE AS4841 | 00000000 | 0000000 |

304 Stainless Steel | ||||
---|---|---|---|---|
For Tube OD | Max. Pressure | Specifications Met | Each | |
2" | 1,500 psi @ 72° F | AN819-32J, ASTM A380, MS20819, SAE AS4841 | 00000000 | 000000 |
Nuts for Precision AN 37° Flared Fittings for Stainless Steel Tubing

- For Use With: Air, Cutting Oil, Fuel Oil, Hydraulic Fluid, Mineral Oil, Water
- Temperature Range: -320° to 1200° F
- Tubing: Use with seamless 304 or 316 stainless steel
- Specifications Met: See Table
Use these nuts with precision AN sleeves and fittings to provide a tight metal-to-metal seal on stainless steel tubing that is flared to 37°. The threads are Class 3B and adhere to tighter tolerances than other nuts. They are made to exact AS (formerly AN) specifications.
304 stainless steel nuts have very good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
304 Stainless Steel | ||||
---|---|---|---|---|
For Tube OD | Max. Pressure | Specifications Met | Each | |
2" | 1,500 psi @ 72° F | AN818-32J, ASTM A380, SAE AS4841 | 00000000 | 0000000 |
37° Flared Fittings for Steel Tubing

- Tubing: Use with seamless steel
- Specifications Met: 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 require a nut and a sleeve (ferrule) for each tube end. Nuts and sleeves are sold separately. Fittings are zinc-plated steel for fair corrosion resistance.
NPTF (Dryseal) threads are compatible with NPT threads.

- For Use With: See Table
- Temperature Range: See Table
For Tube OD | Pipe Size | For Use With | Material | Max. Pressure | Temp. Range, °F | Each | |
NPTF Threads | |||||||
---|---|---|---|---|---|---|---|
2" | 2 | Air, Fuel Oil, Hydraulic Fluid, Mineral Oil | Zinc-Plated Steel | 1,100 psi @ 72° F | -60° to 400° | 00000000 | 000000 |

- For Use With: Air, Fuel Oil, Hydraulic Fluid, Mineral Oil
- Temperature Range: -60° to 400° F
For Tube OD | Pipe Size | Material | Max. Pressure | Each | |
NPTF Threads | |||||
---|---|---|---|---|---|
2" | 2 | Zinc-Plated Steel | 1,100 psi @ 72° F | 00000000 | 000000 |

- For Use With: Air, Fuel Oil, Hydraulic Fluid, Mineral Oil
- Temperature Range: -60° to 400° F
For Tube OD | Nut Material | Max. Pressure | Each | |
2" | Zinc-Plated Steel | 1,100 psi @ 72° F | 00000000 | 000000 |
Nuts for 37° Flared Fittings for Steel Tubing

- For Use With: Air, Fuel Oil, Hydraulic Fluid, Mineral Oil
- Temp. Range: -60° to 400° F
- Tubing: Use with seamless steel
- Specifications Met: SAE J514
Use these nuts with a sleeve and fitting to provide a tight metal-to-metal seal on steel tubing that is flared to 37°. They are zinc-plated steel for fair corrosion resistance.
For technical drawings and 3-D models, click on a part number.
For Tube OD | Nut Material | Max. Pressure | Each | |
2" | Zinc-Plated Steel | 1,100 psi @ 72° F | 00000000 | 000000 |