About O-Rings
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Oil- and Abrasion-Resistant Polyurethane O-Rings
for Tube Fittings with Straight-Thread Connection
Commonly called Boss O-rings, these polyurethane O-rings are for use in tube fittings with a straight-thread connection. They resist mineral oil, motor oil, and ethylene glycol. All have a round profile and are suitable for a wide range of static and dynamic sealing applications. These O-rings are sized to the SAE standard AS568.
For technical drawings and 3-D models, click on a part number.
| Dash Number  | For Tube OD | Wd. | ID | OD | Hardness | Specifications Met | Temperature Range, °F | Color | Pkg. Qty. | Pkg. | |
| 913 | 13/16" | 0.116" | 0.986" | 1.218" | Durometer 70A (Medium) | ASTM D2000, SAE AS568, SAE J200 | -40° to 200° | Black | 1 | 00000000 | 00000 |
Chemical-Resistant Hard Viton® Fluoroelastomer O-Rings
for Tube Fittings with Straight-Thread Connection
Also known as Boss O-rings, these hard Viton® fluoroelastomer O-rings are for use in tube fittings with a straight-thread connection. They resist a wide range of chemicals, including benzene, butyl alcohol, and ethylene glycol. All have a round profile and are suitable for both static and dynamic sealing applications. These O-rings are sized to the SAE standard AS568.
For technical drawings and 3-D models, click on a part number.
| Dash Number | For Tube OD | Wd. | ID | OD | Hardness | Specifications Met | Temperature Range, °F | Color | Pkg. Qty. | Pkg. | |
| 913 | 13/16" | 0.116" | 0.986" | 1.218" | Durometer 90A (Hard) | ASTM D2000, SAE AS568, SAE J200 | 0° to 400° | Black | 25 | 00000000 | 000000 |
Ultra-Chemical-Resistant Rigid PTFE O-Rings
for Tube Fittings with Straight-Thread Connection
These temperature- and chemical-resistant O-rings prevent leaks in tube fittings that have a straight-thread connection, also known as O-ring boss fittings. Because they’re PTFE, these O-rings are slippery, won’t tear, and resist harsh chemicals such as acetone, fluorinated solvents, methanol, and boric acid. They’re also made of FDA-listed materials, so they’re safe to use in food production lines. However, they’re rigid, which makes them more difficult to install than flexible O-rings. They come in standard dash number sizes according to SAE AS568A.
For technical drawings and 3-D models, click on a part number.
Fractional | Actual | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dash Number | For Tube OD | Wd. | ID | OD | Wd. | ID | OD | Hardness | Specifications Met | Temperature Range, °F | Color | Pkg. Qty. | Pkg. | |
| 913 | 13/16" | 1/8 | 1 | 1 7/32 | 0.116" | 0.986" | 1.218" | Durometer 55D (Hard) | FDA Compliant 21 CFR 177.1550, SAE AS568 | -300° to 500° | White | 5 | 0000000 | 000000 |
High-Temperature Soft Silicone O-Rings
Able to withstand temperatures up to 400° F, these silicone O-rings are softer than standard silicone O-rings for a better seal in low-pressure applications. They have a round profile and are suitable for a wide range of static and dynamic sealing applications. All are sized to the SAE standard AS568.
For technical drawings and 3-D models, click on a part number.
Fractional | Actual | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dash Number | For Tube OD | ID | OD | ID | OD | Hardness | Specifications Met | Temperature Range, °F | Color | Pkg. Qty. | Pkg. | |
Wd.: 1/8 Fractional (0.116" Actual) | ||||||||||||
| 913 | 13/16" | 1 | 1 7/32 | 0.986" | 1.218" | Durometer 50A (Soft) | ASTM D2000, SAE AS568 | -85° to 400° | Red | 5 | 00000000 | 000000 |
High-Temperature High-Purity Silicone O-Rings
for Tube Fittings with Straight-Thread Connection
Also known as Boss O-rings, these silicone O-rings are for use in tube fittings with a straight-thread connection. They withstand temperatures up to 400° F and bounce back after compression. All have a round profile and are suitable for a wide range of sealing applications. These O-rings are sized to the SAE standard AS568.
For technical drawings and 3-D models, click on a part number.
| Dash Number | For Tube OD | Wd. | ID | OD | Hardness | Temperature Range, °F | Color | Pkg. Qty. | Pkg. | |
| 913 | 13/16" | 0.116" | 0.986" | 1.218" | Durometer 70A (Medium) | -60° to 400° | Red | 25 | 00000000 | 000000 |
Water- and Steam-Resistant EPDM O-Rings for
Tube Fittings with Straight-Thread Connection
Also known as Boss O-rings, these EPDM O-rings are for use in tube fittings with a straight-thread connection. They resist water, steam, ethanol, and ethylene glycol. All have a round profile and are suitable for a wide range of static and dynamic sealing applications. These O-rings are sized to the SAE standard AS568.
For technical drawings and 3-D models, click on a part number.
| Dash Number | For Tube OD | Wd. | ID | OD | Hardness | Specifications Met | Temperature Range, °F | Color | Pkg. Qty. | Pkg. | |
| 913 | 13/16" | 0.116" | 0.986" | 1.218" | Durometer 70A (Medium) | ASTM D2000, SAE AS568, SAE J200 | -70° to 250° | Black | 70 | 00000000 | 000000 |
Water-Resistant Neoprene O-Rings for Tube
Fittings with Straight-Thread Connection
Also known as Boss O-rings, these neoprene O-rings are for use in tube fittings with a straight-thread connection. They resist water, ammonia, ethylene glycol, and isopropyl alcohol. All have a round profile and are suitable for a wide range of static and dynamic sealing applications. These O-rings are sized to the SAE standard AS568.
For technical drawings and 3-D models, click on a part number.
| Dash Number | For Tube OD | Wd. | ID | OD | Hardness | Temperature Range, °F | Color | Pkg. Qty. | Pkg. | |
| 913 | 13/16" | 0.116" | 0.986" | 1.218" | Durometer 70A (Medium) | -10° to 170° | Black | 70 | 000000000 | 000000 |