Filter by
Tube Material
DFARS Compliance
Environment
Material
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.
More
High-Polish Gasket Fittings for Stainless Steel Tubing
- For Use With: Air, Dairy, Water
- Temperature Range: See Gaskets
- Tubing:
Inch Butt-Weld Fittings and Quick-Clamp Fittings: Use with welded 304/304L or 316/316L stainless steel that meets ASTM 269 or ASTM 27
Metric Butt-Weld Fittings: Use with welded or seamless 316 stainless steel - Specifications Met:
304 Stainless Steel Adapters, Caps, and Nuts: 3-A Certified 63-04
Gaskets: See table
Join these fittings with a threaded nut and a gasket for a secure connection that grants you easy access to your line. Also known as bevel seat fittings, the fittings are beveled to fit snugly around the gasket, creating a vibration-resistant seal. Fittings are polished to a smooth finish on the interior to prevent product buildup and bacterial growth.
304 stainless steel fittings have very good corrosion resistance. They’re 3-A certified to meet sanitary design standards. 316 stainless steel fittings have excellent corrosion resistance.
Note: For a complete connection, you’ll need a threaded straight adapter, an unthreaded straight adapter, a gasket, and a nut (all sold separately unless noted).
For technical drawings and 3-D models, click on a part number.
Straight Adapters, Threaded Gasket × Butt Weld Tube
Butt Weld Tube Connection | ||||||
|---|---|---|---|---|---|---|
| Gasket Connection | Butt Weld Connection | Wall Thick. | Material | Max. Pressure | Each | |
| 1" | 1" | 0.065" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 000000 |
| 1 1/2" | 1 1/2" | 0.065" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| 2" | 2" | 0.065" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| 2 1/2" | 2 1/2" | 0.065" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| 3" | 3" | 0.065" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| 4" | 4" | 0.083" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| 41mm | 1 1/2" | 0.809" | 316 Stainless Steel | 580 psi @ 72° F | 00000000 | 00000 |
| 53mm | 2" | 1.059" | 316 Stainless Steel | 360 psi @ 72° F | 00000000 | 00000 |
Straight Adapters, Unthreaded Gasket × Butt Weld Tube
For Tube OD | ||||||
|---|---|---|---|---|---|---|
| Gasket Connection | Butt Weld Connection | Wall Thick. | Material | Max. Pressure | Each | |
| 1" | 1" | 0.065" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 000000 |
| 1 1/2" | 1 1/2" | 0.065" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| 2" | 2" | 0.065" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| 2 1/2" | 2 1/2" | 0.065" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| 3" | 3" | 0.065" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| 4" | 4" | 0.083" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| 41mm | 1 1/2" | 0.809" | 316 Stainless Steel | 580 psi @ 72° F | 00000000 | 00000 |
| 53mm | 2" | 1.059" | 316 Stainless Steel | 360 psi @ 72° F | 00000000 | 00000 |
| 70mm | 70mm | 37mm | 316 Stainless Steel | 360 psi @ 72° F | 00000000 | 00000 |
Straight Adapters, Threaded Gasket × Quick-Clamp Tube
For Tube OD | ||||||
|---|---|---|---|---|---|---|
| Gasket Connection | Quick-Clamp Connection | Wall Thick. | Material | Max. Pressure | Each | |
| 1" | 1" | 0.065" | 316 Stainless Steel | Not Rated | 0000000 | 000000 |
| 1 1/2" | 1 1/2" | 0.065" | 316 Stainless Steel | Not Rated | 0000000 | 000000 |
| 2" | 2" | 0.065" | 316 Stainless Steel | Not Rated | 0000000 | 000000 |
| 2 1/2" | 2 1/2" | 0.065" | 316 Stainless Steel | Not Rated | 0000000 | 000000 |
| 3" | 3" | 0.065" | 316 Stainless Steel | Not Rated | 0000000 | 000000 |
Straight Adapters, Unthreaded Gasket × Quick-Clamp Tube
For Tube OD | |||||||
|---|---|---|---|---|---|---|---|
| Gasket Connection | Quick-Clamp Connection | Wall Thick. | Material | Max. Pressure | Includes | Each | |
| 1" | 1" | 0.065" | 316 Stainless Steel | Not Rated | 304 Stainless Steel Nut | 0000000 | 0000000 |
| 1 1/2" | 1 1/2" | 0.065" | 316 Stainless Steel | Not Rated | 304 Stainless Steel Nut | 0000000 | 000000 |
| 2" | 2" | 0.065" | 316 Stainless Steel | Not Rated | 304 Stainless Steel Nut | 0000000 | 000000 |
| 2 1/2" | 2 1/2" | 0.065" | 316 Stainless Steel | Not Rated | 304 Stainless Steel Nut | 0000000 | 000000 |
| 3" | 3" | 0.065" | 316 Stainless Steel | Not Rated | 304 Stainless Steel Nut | 0000000 | 000000 |
Caps
| For Tube OD | Material | Max. Pressure | Each | |
| 1" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| 1 1/2" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| 2" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| 2 1/2" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| 3" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| 4" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
Nuts
| For Tube OD | Nut Material | Max. Pressure | Each | |
| 1" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 000000 |
| 1 1/2" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| 2" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| 2 1/2" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| 3" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| 4" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| 41mm | 304 Stainless Steel | 580 psi @ 72° F | 00000000 | 00000 |
| 53mm | 304 Stainless Steel | 360 psi @ 72° F | 00000000 | 00000 |
| 70mm | 304 Stainless Steel | 360 psi @ 72° F | 00000000 | 00000 |
Gaskets
| For Tube OD | ID | OD | Thick. | Temp. Range, °F | Color | Specifications Met | Each | |
Buna-N Rubber | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1" | 0.900" | 1.325" | 0.3" | -30° to 200° | Black | __ | 0000000 | 00000 |
| 1 1/2" | 1 3/8" | 1 7/8" | 0.33" | -30° to 200° | Black | __ | 0000000 | 0000 |
| 2" | 1.850" | 2 3/8" | 0.35" | -30° to 200° | Black | __ | 0000000 | 0000 |
| 2 1/2" | 2.340" | 2.950" | 0.35" | -30° to 200° | Black | __ | 0000000 | 0000 |
| 3" | 2 7/8" | 3.475" | 0.35" | -30° to 200° | Black | __ | 0000000 | 0000 |
| 4" | 3.700" | 4 1/2" | 0.45" | -30° to 200° | Black | __ | 0000000 | 0000 |
| 41mm | 42.000mm | 52.000mm | 5mm | -30° to 200° | Blue | __ | 0000000 | 0000 |
| 53mm | 54.000mm | 64.000mm | 5mm | -30° to 200° | Blue | __ | 0000000 | 0000 |
| 70mm | 71.000mm | 81.000mm | 5mm | -30° to 200° | Blue | __ | 0000000 | 00000 |
PTFE Plastic | ||||||||
| 1" | 0.900" | 1.325" | 0.3" | -100° to 500° | White | 3-A Certified 20-27 | 0000000 | 0000 |
| 1 1/2" | 1 3/8" | 1 7/8" | 0.33" | -100° to 500° | White | 3-A Certified 20-27 | 0000000 | 0000 |
| 2" | 1.850" | 2 3/8" | 0.35" | -100° to 500° | White | 3-A Certified 20-27 | 0000000 | 0000 |
| 2 1/2" | 2.340" | 2.950" | 0.35" | -100° to 500° | White | 3-A Certified 20-27 | 0000000 | 0000 |
| 3" | 2 7/8" | 3.475" | 0.35" | -100° to 500° | White | 3-A Certified 20-27 | 0000000 | 0000 |
| 4" | 3.700" | 4 1/2" | 0.33" | -100° to 500° | White | 3-A Certified 20-27 | 0000000 | 0000 |
316 Stainless Steel/PTFE Plastic Blend | ||||||||
| 1" | 0.900" | 1.325" | 0.32" | -350° to 550° | Gray | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550, USP VI Certified | 0000000 | 00000 |
| 1 1/2" | 1 3/8" | 1 7/8" | 0.32" | -350° to 550° | Gray | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550, USP VI Certified | 0000000 | 00000 |
| 2" | 1.850" | 2 3/8" | 0.32" | -350° to 550° | Gray | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550, USP VI Certified | 0000000 | 00000 |
| 2 1/2" | 2.340" | 2.950" | 0.32" | -350° to 550° | Gray | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550, USP VI Certified | 0000000 | 00000 |
| 3" | 2 7/8" | 3.475" | 0.32" | -350° to 550° | Gray | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550, USP VI Certified | 0000000 | 00000 |
| 4" | 3.700" | 4 1/2" | 0.32" | -350° to 550° | Gray | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550, USP VI Certified | 0000000 | 00000 |
Nuts for High-Polish Gasket Fittings for Stainless Steel Tubing
- For Use With: Air, Dairy, Water
- Temperature Range:
Buna-N Gaskets: -30° to 200° F
PTFE Gaskets: -100° to 500° F - Tubing:
Inch Nuts: Use with welded 304/304L or 316/316L stainless steel that meet ASTM A269 or ASTM A270
Metric Nuts: Use with seamless or welded 316 stainless steel - Specifications Met: 3-A Certified 63-04, except metric nuts
Join high-polish gasket fittings for a connection that grants you easy access to your line. Nuts are 304 stainless steel for very good corrosion resistance.
3-A certified nuts have been tested to meet sanitary design standards.
For technical drawings and 3-D models, click on a part number.
Nuts
| For Tube OD | Nut Material | Max. Pressure | Each | |
| 1" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 000000 |
| 1 1/2" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| 2" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| 2 1/2" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| 3" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| 4" | 304 Stainless Steel | 400 psi @ 72° F | 000000000 | 00000 |
| 41mm | 304 Stainless Steel | 580 psi @ 72° F | 00000000 | 00000 |
| 53mm | 304 Stainless Steel | 360 psi @ 72° F | 00000000 | 00000 |
| 70mm | 304 Stainless Steel | 360 psi @ 72° F | 00000000 | 00000 |
Gaskets
The temperature rating of the fitting will vary depending on the gasket material you choose. Buna-N gaskets are oil resistant. PTFE gaskets are chemical resistant.
| For Tube OD | ID | OD | Thick. | Temperature Range, ° F | Color | Specifications Met | Each | |
Buna-N Rubber | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1" | 0.900" | 1.325" | 0.3" | -30° to 200° | Black | __ | 0000000 | 00000 |
| 1 1/2" | 1 3/8" | 1 7/8" | 0.33" | -30° to 200° | Black | __ | 0000000 | 0000 |
| 2" | 1.850" | 2 3/8" | 0.35" | -30° to 200° | Black | __ | 0000000 | 0000 |
| 2 1/2" | 2.340" | 2.950" | 0.35" | -30° to 200° | Black | __ | 0000000 | 0000 |
| 3" | 2 7/8" | 3.475" | 0.35" | -30° to 200° | Black | __ | 0000000 | 0000 |
| 4" | 3.700" | 4 1/2" | 0.45" | -30° to 200° | Black | __ | 0000000 | 0000 |
PTFE Plastic | ||||||||
| 1" | 0.900" | 1.325" | 0.3" | -100° to 500° | White | 3-A Certified 20-27 | 0000000 | 0000 |
| 1 1/2" | 1 3/8" | 1 7/8" | 0.33" | -100° to 500° | White | 3-A Certified 20-27 | 0000000 | 0000 |
| 2" | 1.850" | 2 3/8" | 0.35" | -100° to 500° | White | 3-A Certified 20-27 | 0000000 | 0000 |
| 2 1/2" | 2.340" | 2.950" | 0.35" | -100° to 500° | White | 3-A Certified 20-27 | 0000000 | 0000 |
| 3" | 2 7/8" | 3.475" | 0.35" | -100° to 500° | White | 3-A Certified 20-27 | 0000000 | 0000 |
| 4" | 3.700" | 4 1/2" | 0.33" | -100° to 500° | White | 3-A Certified 20-27 | 0000000 | 0000 |